Journal Of Orthodontics[JOURNAL]
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200 papers
Orthodontic YouTube™ videos made by patients for patients: What are they about and are they accurate?
Liew IE, Sharif MO, Cunningham SJ
J Orthod · 2025 Mar · PMID 39086126 · Publisher ↗
OBJECTIVES: To evaluate the characteristics and content of YouTube™ videos created by patients undergoing orthodontic fixed appliance treatment and to assess the content accuracy of these videos. DESIGN: A mixed-methods...
OBJECTIVES: To evaluate the characteristics and content of YouTube™ videos created by patients undergoing orthodontic fixed appliance treatment and to assess the content accuracy of these videos. DESIGN: A mixed-methods quantitative and qualitative study. DATA SOURCE: YouTube™ webpage. METHODS: The term 'braces' was used to search for relevant videos on the YouTube™ webpage between 18 August and 30 August 2020, with no limits imposed regarding how long the video had been available on YouTube™. Videos were included if they were made by patients and were predominantly about patients' experiences during treatment with labial fixed appliances. The main themes/subthemes of the included videos were identified. A checklist was then developed to assess accuracy of the video content for two of the main themes and the videos were assessed against the checklist. RESULTS: The video search identified 350 videos, of which 64 were selected as potentially eligible; 41 were subsequently excluded as they related primarily to the bond up/debond experience or had minimal information about orthodontics. This meant that 23 videos were ultimately included for analysis. Six main themes were identified in the videos: problems with fixed appliances, effects of fixed appliances, oral hygiene maintenance, dietary advice, treatment duration/appointment frequency and auxiliaries used with fixed appliances. From the 23 videos, 20 were assessed against the checklist for content accuracy related to two selected themes: oral hygiene maintenance and dietary advice. The majority of videos had low content accuracy scores, indicating that important and relevant content was generally missing. CONCLUSION: Several included videos focused on oral hygiene maintenance and dietary advice associated with fixed appliances; however, the content was incomplete and not always accurate. This is concerning to the profession, and it is therefore recommended that clinicians consider collaborating with patients to produce videos that are patient-centred and that also contain accurate information.
Effect of verbal and written information on the perception of pain and analgesic consumption, in adolescent orthodontic patients: A randomised controlled trial.
Pavlić A, Blagec T, Meštrović S
J Orthod · 2025 Mar · PMID 39066635 · Publisher ↗
OBJECTIVE: To investigate the impact of written instructions, about post-bonding pain, on patients' pain perception and analgesic consumption and to evaluate the correlation of pain with personality types. DESIGN: Two-ar...
OBJECTIVE: To investigate the impact of written instructions, about post-bonding pain, on patients' pain perception and analgesic consumption and to evaluate the correlation of pain with personality types. DESIGN: Two-arm parallel randomised controlled trial. SETTING: University Hospital Centre Zagreb, Zagreb, Croatia. METHODS: Participants included adolescents in the permanent dentition with mild or moderate crowding. RANDOMISATION: The participants were randomly allocated, using computer-generated random list, into two groups. INTERVENTIONS: After bonding and archwire insertion, all participants received oral instructions on potential pain occurrence and pain control. Participants in the study group also received written information on post-bonding pain. OUTCOMES: Pain intensity was evaluated using the Numerical Rating Scale immediately after (T0), 2 days (T1) and 7 days (T2) after the placement of the fixed orthodontic appliance. Analgesic consumption was assessed as yes or no, and personality traits were assessed using the Big Five Inventory. Operators who scored pain intensity and recorded analgesic consumption and personality traits were blinded to the group allocation. Statistical analyses included the -test, Mann-Whitney U-test, Spearman correlations and stepwise regression analysis. RESULTS: The highest rate of pain was recorded at T1 ( < 0.001). No statistically significant difference in pain perception between groups was observed. There was no statistically significant difference in analgesic consumption between the two groups ( = 0.81). The correlations between personality traits and pain perception were not significant. CONCLUSION: The additional written information had little impact on pain perception, and it had no relationship to personality types. The perception of pain and analgesic consumption were not affected by the provision of additional written information ( = 0.81). Participants' personality types did not affect the impact of the information given.
Position and root resorption of the incisors following anterior segment retraction using friction versus frictionless mechanics: A randomised controlled trial.
Bakhit DMI, Tawfik MGY, Dehis HM … +2 more , Mostafa YA, El Sharaby FA
J Orthod · 2025 Mar · PMID 39049618 · Publisher ↗
AIM: To evaluate the three-dimensional position and root resorption of incisors after anterior segment retraction (ASR) using friction versus frictionless mechanics. PARTICIPANTS AND METHODS: Thirty female patients (13-1...
AIM: To evaluate the three-dimensional position and root resorption of incisors after anterior segment retraction (ASR) using friction versus frictionless mechanics. PARTICIPANTS AND METHODS: Thirty female patients (13-18 years) with bimaxillary protrusion were randomly allocated into two groups. In the intervention group, ASR was undertaken using an elastomeric chain rendering 160 g/side extending between mini-screw implant and a hook crimped on 0.017 × 0.025-inch stainless-steel wire distal to the lateral incisor. In the comparison group, ASR was undertaken using closing T-loops fabricated from 0.017 × 0.025-inch titanium molybdenum alloy (TMA) wire rendering comparable retraction force. In both groups, the canine brackets were ligated after retraction to the mini-screw implants that were inserted in both the upper and lower arches bilaterally. The primary outcome was the three-dimensional changes in the position of the incisors. The secondary outcome was root resorption. These were measured from cone-beam computed tomography scans. RESULTS: Statistically significant decreases in the upper (UI) and lower incisors (LI) crown torque were seen in both groups; however, the difference between groups was not statistically or clinically significant (UI MD -2.04°; 95% confidence interval [CI] = -8.02-3.95; LI MD -0.49°; 95% CI = -7.06-6.08). Significant tipping of upper (MD -1.17°; 95% CI = -2.06--0.27) and lower (MD -1.13°; 95% CI = -1.66--0.60) incisors was found in the friction, but not the frictionless group after retraction; however, the changes were not clinically significant. Significant lower incisor intrusion was found in both groups after retraction; however, the difference between groups was not statistically or clinically significant (MD -0.61°; 95% CI = -1.99-0.77). Statistically significant decreases in the UI and LI root length were seen in both groups. The difference between groups for UI changes was statistically significant (MD 0.54 mm; 95% CI = -0.02-1.07) but probably not clinically significant. CONCLUSION: Considering the limitations in the current study, there was no advantage of either mechanics over the other regarding the final position of incisors. The likelihood of root resorption should be considered when frictionless mechanics are used for retraction of incisors.Registry:Clinicaltrials.gov (NCT04878939).
Successful completion of orthodontic therapy in a patient with osteopetrosis: Case Report.
Brooks JK, Height LM, Jimenez BA … +3 more , Anyadike AC, Kvint JG, Price JB
J Orthod · 2025 Jun · PMID 39049616 · Publisher ↗
INTRODUCTION: Orthodontic therapy in patients with osteopetrosis (OP) of the jaws has typically been contraindicated owing to the presence of poorly perfused and extremely compact bone, and the potential risk for infecti...
INTRODUCTION: Orthodontic therapy in patients with osteopetrosis (OP) of the jaws has typically been contraindicated owing to the presence of poorly perfused and extremely compact bone, and the potential risk for infection and osteomyelitis. As such, completed orthodontic cases in association with OP, have rarely been published. PATIENT CONCERNS: A patient aged 14 years 6 months, with no known diagnosis of OP, sought orthodontic assessment for anterior crowding. CLINICAL FINDINGS: The patient exhibited a straight facial profile and increased mandibular facial height, competent lips, shallow mentolabial sulcus with mild mentalis strain, flat/reverse smile arc and wide buccal corridors on smiling.Primary diagnosis:The patient had a Class I incisor relationship on Class 1 skeletal bases with bilateral Class I molars and Class II canine relationships. This was complicated by a crossbite involving the lateral incisors and a Bolton discrepancy due to small maxillary lateral incisors. A radiologic assessment revealed polyostotic OP of the oromaxillofacial complex. INTERVENTIONS: Treatment consisted of maxillary and mandibular fixed orthodontic therapy, bite turbos and elastics to level and align the dentition. Extractions of permanent teeth were not needed. OUTCOMES: At the conclusion of treatment, there was a slight left Class II malocclusion, with incomplete intercuspation on the left side due to tooth size discrepancy, possibly attributed to inadequate elastics compliance and the presence of osteopetrotic bone. The treatment was completed in 3 years, 1 year longer than anticipated. CONCLUSION: This report represents the second published account of a patient with OP successfully managed with comprehensive orthodontic care and without osseous complications. Obtaining cephalometric measurements on OP-affected patients may be imprecise owing to the presence of extremely dense bone and difficulty to identify bony landmarks. To reduce osteopetrotic sequelae, attending clinicians should consider reduced exertional orthodontic forces and closely monitor patients for adverse alveolar events.
The effect of chewing gum on the rate of en-masse space closure: A randomised controlled trial.
Murugan C, Kailasam V
J Orthod · 2024 Dec · PMID 39049440 · Publisher ↗
AIM: To evaluate the effect of chewing gum on the rate of space closure, oral hygiene, pain during space closure and appliance breakage in patients undergoing fixed appliance therapy. DESIGN: A prospective, single-centre...
AIM: To evaluate the effect of chewing gum on the rate of space closure, oral hygiene, pain during space closure and appliance breakage in patients undergoing fixed appliance therapy. DESIGN: A prospective, single-centre, two-arm, parallel, double-blinded randomised controlled trial. SETTING: Orthodontic unit of a privately funded hospital, Chennai, India. PARTICIPANTS: In total, 28 participants were randomly allocated into a chewing gum group (CGG) (n = 14) or a control group (CG) (n = 14). METHODS: Baseline data were collected at the start of retraction (T0), at 4 weeks (T1), 8 weeks (T2) and 12 weeks (T3) after the start of retraction. Rate of space closure, pain, oral hygiene and appliance breakage were assessed at T1, T2 and T3. Data were analysed using an independent -test with < 0.05 considered to be statistically significant. RESULTS: The mean rate of space closure in the CGG was 0.9 ± 0.2 mm/month and 0.8 ± 0.2 mm/month in the CG (mean difference 0.1mm/month ± 0.16; 95% confidence interval -0.055-0.26). In both the groups, oral hygiene became worse between T0 and T3. At T0 and T1, participants in the CGG reported less pain at 24 h and 7 days when compared to the CG ( < 0.05). At T2 and T3, participants in the CGG reported less pain at 0 h, 24 h and 7 days when compared to the CG ( < 0.05). Appliance breakage in both groups was minimal, with an odds ratio of 0.7 (95% CI 0.1-3.8) and was similar ( = 0.66). CONCLUSION: There was a minimal increase that was clinically not significant in the rate of space closure with chewing gum. Chewing gum ensured better oral hygiene, helped alleviate pain and had no effect on appliance breakage during space closure.
Post-treatment stability, survival time and periodontal health associated with vacuum-formed, bonded and rapid prototype retainers: A prospective clinical study.
Murugaiyan S, Pottipalli Sathyanarayana H, Thakkar D … +1 more , Padmanabhan S
J Orthod · 2025 Jun · PMID 38859624 · Publisher ↗
BACKGROUND: New technologies have paved the way for newer fabrication techniques, such as rapid prototyping, which has gained popularity in the fabrication of several orthodontic appliances including retainers. AIM: To e...
BACKGROUND: New technologies have paved the way for newer fabrication techniques, such as rapid prototyping, which has gained popularity in the fabrication of several orthodontic appliances including retainers. AIM: To evaluate the stability, survival time and periodontal health associated with vacuum-formed retainers (VFRs), bonded retainers (BRs) and rapid prototype retainers (RPRs) over a period of 12 months in retention. STUDY DESIGN: Prospective clinical study. METHODS: A total of 72 participants completing fixed orthodontic treatment were allocated to the following three groups by the investigators based upon their initial malocclusion, compliance and preferences: VFR; BR; and RPR. The primary outcome was Little's Irregularity Index (LII). Other stability parameters, including arch length (AL), inter-canine width (ICW) and inter-molar width (IMW), were also assessed immediately after debonding (T0) and 12 months (T2) after debonding. In addition, survival time, calculus index and gingival index (GI) were assessed. RESULTS: LII showed a significant difference ( = 0.00) between the groups and was increased in the VFR group (0.18 ± 0.22 mm) compared to the BR (0.03 ± 0.05 mm) and RPR (0.01 ± 0.03 mm) groups but was not clinically significant. The mean survival time of maxillary retainers was longest for the RPR group (220.63 days; 95% confidence interval [CI] = 194.1-247.16) but there was no significant difference between the three groups ( = 0.43). The mean survival time of mandibular retainers was higher and the same for the VFR and RPR groups (240 days; 95% CI = 240-240) and there was no significant difference between the three groups ( = 0.38). The calculus index score ( = 0.00) was statistically significant between the groups, with an increased score for the BR group (0.33 ± 0.27) compared to the VFR (0.07 ± 0.16) and RPR (0.13 ± 0.22) groups. Similarly, the GI score ( = 0.02) was statistically significant between the groups and was increased in the BR group (0.01 ± 0.19) compared to the VFR (-0.15 ± 0.18) and RPR (-0.06 ± 0.15) groups. The increase in calculus index and GI scores for the BR group were not clinically significant. CONCLUSION: There were no clinically significant differences between the three retainer groups in terms of stability, periodontal health and time to failure.
Adult orthodontic patients: What is important to them?
Wall A, Hillyard N, Ryan FS … +1 more , Cunningham SJ
J Orthod · 2024 Dec · PMID 38859622 · Publisher ↗
OBJECTIVE: To understand patients' motivations for pursuing treatment, to appreciate what information patients seek and to explore potential factors affecting decision making in adults considering, undergoing or who have...
OBJECTIVE: To understand patients' motivations for pursuing treatment, to appreciate what information patients seek and to explore potential factors affecting decision making in adults considering, undergoing or who have had orthodontic treatment in the private sector. DESIGN: Cross-sectional questionnaire study. SETTING: Online questionnaire. PARTICIPANTS: A total of 209 (83% women, 16% men, 1% preferred not to say) completed responses were received. METHODS: Once piloted, the final survey was made available online to adults in the United Kingdom (UK) and Republic of Ireland (RoI) who were either considering having orthodontic treatment, currently undergoing treatment or had recently completed treatment in the private sector. RESULTS: The most commonly selected motivating factor was to 'improve the appearance of my teeth' (82%). The information sought related predominantly to treatment duration (64%), potential end results (56%), types of appliances that were available (55%) and cost (52%). The two most commonly reported social factors that had influenced participants to consider treatment were 'seeing myself on social media' (31%) and 'it is more socially acceptable to have braces' (31%). CONCLUSION: While this area remains relatively underexplored in the literature, it is crucial to develop a comprehensive understanding due to the increasing number of adults seeking orthodontic treatment. This study not only reinforces the existing knowledge regarding adults seeking orthodontic treatment, such as the predominant role of aesthetics as a motivating factor, but also introduces some novel insights. Specifically, we highlight the influence of social factors on decision-making processes and the importance of effectively communicating the duration of treatment to patients.
The effectiveness of bone anchored maxillary protraction (BAMP) in the management of class III skeletal malocclusion in children aged 11-14 years compared with an untreated control group: A multicentre two-arm parallel randomised controlled trial.
Mandall N, Aleid W, Cousley R … +16 more , Curran E, Caldwell S, DiBiase A, Dyer F, Littlewood S, Nute S, Campbell SJ, Atkins S, Bayoumi S, Bhatt V, Chambers P, Goodger N, Bates C, Malik O, Waring D, Bassett P
J Orthod · 2024 Sep · PMID 38845172 · Publisher ↗
OBJECTIVE: To evaluate the effectiveness of bone anchored maxillary protraction (BAMP) in the management of class III skeletal malocclusion in children aged 11-14 years compared with an untreated control group in terms o...
OBJECTIVE: To evaluate the effectiveness of bone anchored maxillary protraction (BAMP) in the management of class III skeletal malocclusion in children aged 11-14 years compared with an untreated control group in terms of perceived need for orthognathic surgery, skeletal and dental change, and psychological impact. DESIGN: A multicentre two-armed parallel randomised controlled trial. SETTING: Six UK hospital orthodontic units. METHODS: A total of 57 patients were randomly allocated into either the BAMP group (BAMPG) (n = 28) or a no treatment control group (CG) (n = 29). OUTCOMES: Data collection occurred at registration (DC1),18 months (DC2) and 3 years (DC3), where skeletal and dental changes were measured from lateral cephalograms and study models. Oral Aesthetic Subjective Impact Score (OASIS) and Oral Quality of Life (OHQOL) questionnaires were used to assess the psychological impact of treatment. RESULTS: The mean age was 12.9 ± 0.7 years and 12.6 ± 0.9 years in the BAMPG and CG, respectively. At DC2, the BAMPG achieved a class III ANB improvement of +0.6° compared with -0.7° in the CG ( = 0.004). The overjet improvement was +1.4 mm for the BAMPG and -0.2 mm for the CG ( = 0.002). There was no evidence of any other group differences for the other skeletal or dental cephalometric outcomes ( > 0.05) or the questionnaire data (OASIS = 0.10, OHQOL = 0.75). At DC2, the 18-month follow-up, 22% of the BAMPG achieved a positive overjet. At the 3-year follow-up (DC3), fewer participants in the BAMPG were perceived to need orthognathic surgery (48%) compared with 75% of participants in the CG ( = 0.04), with an odds ratio of 0.31 (95% confidence interval = 0.10-0.95). CONCLUSION: The BAMP technique did not show any social or psychological benefits; however, the skeletal class III improvement in ANB and the overjet change were sufficient to reduce the perceived need for orthognathic surgery by 27% compared with the CG.
Guest Editorial: Research: A top priority for BOS.
Mossey P
J Orthod · 2024 Jun · PMID 38812353 · Publisher ↗
Abstract loading — click title to view on PubMed.
Editorial.
Harrison J
J Orthod · 2024 Jun · PMID 38812351 · Publisher ↗
Abstract loading — click title to view on PubMed.
Trismus caused by migration of orthodontic archwire into the infratemporal fossa: a case report.
Chan BH, Goh AW, Lai Su-Hsyen C
J Orthod · 2025 Mar · PMID 38783666 · Publisher ↗
INTRODUCTION: Soft tissue injuries are known complications of orthodontic treatment. Most of the injuries are mild, but severe complications can arise from deeper penetration or dislodgement of brackets and other foreign...
INTRODUCTION: Soft tissue injuries are known complications of orthodontic treatment. Most of the injuries are mild, but severe complications can arise from deeper penetration or dislodgement of brackets and other foreign bodies into the surrounding tissues of the oropharynx and infratemporal fossa. PATIENT CONCERNS: The patient, accompanied by his parents, presented to the Children's Emergency Department with the concern of gradual limitation of mouth opening and eventual trismus, which occurred over a span of 2 weeks. CLINICAL FINDINGS: The patient presented with trismus and slight discomfort at the left cheek region. He reported a history of gradual limitation to his mouth opening 2 weeks prior. He was wearing upper and lower fixed orthodontic appliances and the left distal end of the maxillary archwire was found to have migrated into the left infratemporal fossa.Primary diagnoses:Left medial pterygoid muscle inflammation, or bleeding and haematoma formation, or infection within the infratemporal region. INTERVENTIONS: The maxillary archwire was removed in the Children's Emergency Department and a computed tomography (CT) scan performed subsequently confirmed the diagnosis of left medial pterygoid muscle inflammation. The patient was started on an intravenous (IV) antibiotic and a 2-day course of IV dexamethasone to reduce the muscle inflammation. OUTCOME: By the second day, the patient was able to achieve a mouth opening of 6 mm, and by the second week, the mouth opening had returned to normal. CONCLUSION: The potential risk of soft tissue injury and complications from orthodontic treatment is generally mild and limited. Soft tissue injuries can be avoided with careful management by the operator with the proper precautions taken. Clinicians should be familiar with the surrounding soft tissue anatomy and be aware of the potential for more severe complications and provide management or referral to the appropriate specialty accordingly.
Information-seeking behaviour in patients exploring orthognathic surgery: A qualitative study.
Wade N, Paul N, Nagar N … +2 more , Rolland S, Germain S
J Orthod · 2025 Mar · PMID 38717064 · Full text
OBJECTIVE: To explore how orthognathic patients seek information during decision-making. DESIGN: Qualitative, cross-sectional study. SETTING: A hospital in Cumbria, UK. PARTICIPANTS: Prospective orthognathic patients. ME...
OBJECTIVE: To explore how orthognathic patients seek information during decision-making. DESIGN: Qualitative, cross-sectional study. SETTING: A hospital in Cumbria, UK. PARTICIPANTS: Prospective orthognathic patients. METHODS: Participants were purposively recruited from joint orthognathic clinics after the original consultation. Semi-structured interviews were conducted via remote video call with nine participants aged 18-30 years. Data collection and reflexive thematic analysis occurred in parallel until thematic saturation was achieved. RESULTS: The central finding of this research was that patients were making informed decisions about orthognathic surgery. Four themes were identified to support this central finding including the following: (1) selective engagement with orthognathic information sources; (2) the central role of patient-specific information from professionals and peers; (3) Internet use to supplement standard information resources; and (4) concerns over information found online. The preferred source of information was verbal from the clinical team as it was trusted and person-specific. Past patients were identified as valued sources of information and establishing contact through digital social media networks was found to be a convenient alternative to face-to-face. Online information found was valued but concerns included information overload, problems establishing applicability and concerns over its credibility. CONCLUSION: Orthognathic patients were making informed decisions about their treatment. This study highlights the central role of the patient-clinician interaction in decision-making, especially in providing patient-specific information. Insight into the nuances of information-seeking behaviours will better inform clinical care. Since patients frequently access online information that is decision-relevant, encouraging patients to discuss online searches will support the shared decision-making process and alleviate any concerns with information found. During consultation, explaining the purpose of an information aid rather than expecting patients to read them separately, may further enhance its usefulness in decision-making. This study identified an unmet need for visual aids, such as real-time images of postoperative recovery. These findings can inform the design of future information resources.
Perception of maxillary incisor inclination and its correlation with dental cephalometric measurements.
Palmares S, Caseiro R, Pereira R … +1 more , Jardim L
J Orthod · 2024 Dec · PMID 38682492 · Full text
OBJECTIVE: To correlate the clinical perception of maxillary incisor inclination from photographs of the smiling face with cephalometric measurements, using conventional incisor axis reference points and crown reference...
OBJECTIVE: To correlate the clinical perception of maxillary incisor inclination from photographs of the smiling face with cephalometric measurements, using conventional incisor axis reference points and crown reference points. DESIGN: Cross-sectional study. SETTING: Department of Orthodontics, School of Dentistry, University of Lisbon (Portugal). PARTICIPANTS: Eight orthodontists. METHODS: The perception of maxillary incisor inclination of 47 female patients (mean age 23.4 ± 1.5 years) was evaluated by eight orthodontists. The participants' photographs (smiling frontal, smiling three-quarter and smiling profile) were shown to each assessor and a continuous visual analogue rating scale was used to assess the perception of maxillary incisor inclination. Pearson's correlation and linear regression were calculated between each cephalometric measurement and the perception of incisor inclination. RESULTS: Anatomical crown inclination measurements U1ac-FH (r = 0.854; < 0.01) and U1ac-SN (r = 0.845; < 0.01) had the highest correlation values with the assessors' perception of maxillary incisor inclination. Conventional incisor axis measurements showed the lowest correlation values (r = 0.668-0.756). CONCLUSION: Cephalometric measurements of the labial surface of the anatomical crown of the maxillary incisors showed the strongest correlations with the clinical perception of maxillary incisor inclination from photographs. For optimal aesthetics, the inclination of the labial surface of maxillary incisor crown should be evaluated.
Resin infiltration for white spot lesions: An in vitro experimental trial.
Park H, Hong S, Chrzan B … +2 more , Al-Talib T, Abubakr NH
J Orthod · 2025 Mar · PMID 38587302 · Publisher ↗
OBJECTIVE: To evaluate the aesthetic outcome by varying the duration allowed for infiltrant penetration when treating white spot lesions with resin infiltration. DESIGN: An in vitro, experimental randomised study. METHOD...
OBJECTIVE: To evaluate the aesthetic outcome by varying the duration allowed for infiltrant penetration when treating white spot lesions with resin infiltration. DESIGN: An in vitro, experimental randomised study. METHODS: Artificially created white spot lesions (WSLs) were induced on 100 extracted anterior teeth (T1). Teeth were divided into enamel and dentine groups depending on the extent of the lesion and then randomly assigned into different treatment protocol groups: penetration times of 3, 6 and 9 min. Resin infiltration treatment was applied according to the treatment protocol assigned (T2). Samples were thermocycled for 10,000 cycles (1 clinical year) (T3). The samples from the 3-min enamel and dentine groups were then randomly assigned into either a repeat treatment or no additional treatment group (T4). Samples were then thermocycled for an additional 10,000 cycles (T5). Spectrophotometric analysis was measured colour change (ΔE) for all groups. RESULTS: Mean ΔE values equal to or greater than the critical value (3.7) indicate a detectable clinical difference in colour of the treated WSL when compared to before WSL formation. Mean ΔE values, for the enamel groups, were slightly above or significantly below the critical value, and for the dentine groups, were significantly above the critical value. Mean ΔE values within the enamel and dentine groups both demonstrated a downward trend with increasing time allowed for resin infiltrant penetration ( < 0.05). No significant mean ΔE difference ( = 0.53) was found between groups that received a single or repeat treatment. After the first thermocycling event, no significant difference in colour change was observed in all groups except for the deep dentine lesion treated for 3 min. There was a significant difference in colour change for all groups except the enamel group that received a single treatment following thermocycling after a single or repeat treatment. CONCLUSION: Increasing the resin infiltrant penetration time to at least 9 min is advised as the most optimised treatment protocol. Resin infiltration treatment should be done only once to treat a particular white spot lesion as subsequent treatment for the same lesion results in marginal colour improvement. The colour improvement of WSLs resulting from the resin infiltration treatment can be expected to last for at least 1 year. Resin infiltration treatment of shallow lesions with a single and optimised infiltration technique can be expected to last an additional year.
Trial sequential analysis: A simple guide for judging the conclusiveness of the effect.
Mheissen S
J Orthod · 2025 Jun · PMID 38587295 · Publisher ↗
Meta-analysis is a statistical method used in systematic reviews to provide a quantitative estimate of the effect. However, including very few studies and participants may increase the risk of spurious findings. Trial se...
Meta-analysis is a statistical method used in systematic reviews to provide a quantitative estimate of the effect. However, including very few studies and participants may increase the risk of spurious findings. Trial sequential analysis (TSA) has been introduced to enhance the robustness of meta-analysis. TSA is a cumulative meta-analysis method that weighs type I and II errors while estimating the effect. The application of TSA can lead to a more accurate estimation of the clinical effectiveness of the intervention. The aim of the present paper was to introduce the TSA to orthodontic clinicians and researchers using continuous data from an orthodontic systematic review.
Periodontal outcomes of surgically exposed and orthodontically aligned buccally impacted maxillary canines: A systematic review and meta-analysis.
Corrente MNCG, do Amaral GCLS, Ribeiro RC … +3 more , Pannuti CM, Cavalcanti LG, Villar CC
J Orthod · 2024 Sep · PMID 38561943 · Publisher ↗
OBJECTIVE: To compare the periodontal outcomes of surgically exposed and orthodontically aligned buccally impacted maxillary canines to spontaneously erupted maxillary canines. DATA SOURCES: An unrestricted search was ca...
OBJECTIVE: To compare the periodontal outcomes of surgically exposed and orthodontically aligned buccally impacted maxillary canines to spontaneously erupted maxillary canines. DATA SOURCES: An unrestricted search was carried out of indexed databases (Medline, EMBASE, Web of Science and Scopus), reference lists of included studies, and grey literature published until December 2023. DATA SELECTION: Observational and experimental studies that addressed the focused question 'Do periodontal outcomes of buccally impacted maxillary canines that were surgically exposed and subsequently extruded and aligned using orthodontic alignment, differ from those of spontaneously erupted maxillary canines?' were included. DATA EXTRACTION: Study screening, selection and data extraction were performed independently by two authors, with disagreement resolved by a third reviewer. The risk of bias was assessed using the JBI Critical Appraisal Checklist and GRADE approach. RESULTS: A total of 857 citations were found and five studies were eligible for inclusion. Supragingival plaque accumulation and gingival inflammation were similar between impacted canines and their contralaterals in most studies. Meta-analyses revealed no significant differences in keratinised tissue width (prospective studies: MD = -0.28, 95% confidence interval [CI] = -1.13-0.56, I² = 78%; retrospective studies: MD = 0.61, 95% CI = -1.51-2.72, I² = 94%). However, a meta-analysis of prospective studies showed slightly greater mean probing depth for impacted canines compared to their contralateral canines (prospective studies: MD = 0.16, 95% CI = 0.04-0.28, I² = 0%). The evidence certainty for keratinised tissue width and probing depth outcomes was low. CONCLUSION: Surgically exposed and orthodontically aligned buccally impacted canines have slightly greater probing depths, potential bone loss and increased clinical crown length, compared to their counterparts. However, these small differences (<1 mm) are unlikely to be clinically significant.
Comparison of 3D Easy Box cone-beam computed tomography analysis with 2D Modified Easy Box on OPG as a prognostic tool for impacted maxillary canines: A pilot study.
Dias R, Kanungo H, Gupta M … +3 more , Mishra K, Soni A, Jaiswal A
J Orthod · 2024 Dec · PMID 38561938 · Publisher ↗
OBJECTIVE: To assess and compare the validity of 2D modified Easy Box and measurement of the Beta angle on standard conventional orthopantomogram (OPG) versus 3D cone-beam computed tomography (CBCT) OPG-constructed view....
OBJECTIVE: To assess and compare the validity of 2D modified Easy Box and measurement of the Beta angle on standard conventional orthopantomogram (OPG) versus 3D cone-beam computed tomography (CBCT) OPG-constructed view. DESIGN: A retrospective agreement study. METHODS: The aim of this study was to construct an Easy Box on a standard conventional OPG and to validate this novel method by comparing it with the Easy Box method on 3D CBCT. After approval from the Ethics Committee, OPG and CBCT radiographs were obtained for the study from departmental records and five private practices in the same location (Indore, India). The radiographs were selected based on record availability and with written consent from the participants before the commencement of the study. The records were analysed to enable a comparison and to assess the accuracy of Easy Box construction on both 3D CBCT and standard conventional OPG radiographs. The location of the impacted canine within the Easy Box boundaries and the measurement of the Beta angle were determined on both views. RESULTS: A perfect agreement was obtained for the comparison of 3D Easy Box CBCT analysis with 2D modified Easy Box on OPG for impacted maxillary canines (Kappa = 1.0). A Bland-Altman (LoA) analysis showed no proportional bias in the comparison of the Beta angle on 3D and 2D OPG radiographs. CONCLUSION: Beta angle and 2D modified Easy Box on a conventional OPG yield similar results when compared to Easy Box on 3D CBCT OPG-constructed view. The standard OPG was valuable and cost-effective, particularly in the early stages of diagnosis and treatment planning, either as a substitute or when CBCT was unavailable.
Late-forming supernumerary teeth: A case series.
Wall A, Chawla R, Smyth RS … +1 more , Ryan FS
J Orthod · 2025 Mar · PMID 38520320 · Publisher ↗
The aim of this case series was to illustrate the development of late-forming supernumerary teeth (LFST) and highlight the implications for orthodontic treatment. There are limited studies relating to the aetiology, prev...
The aim of this case series was to illustrate the development of late-forming supernumerary teeth (LFST) and highlight the implications for orthodontic treatment. There are limited studies relating to the aetiology, prevalence and treatment of LFST and the cases presented here demonstrate the management of LFST within a tertiary care centre. Five cases are presented, which show various presentations and chronological ages in the development of LFST. This case series emphasises the significance of maintaining a low threshold for suspecting LFST in patients where supernumerary teeth have previously been identified. It also highlights the importance of regular clinical and radiographic reviews. Timely identification can help prevent complications and optimise treatment outcomes.
Editorial.
Harrison J
J Orthod · 2024 Mar · PMID 38456268 · Publisher ↗
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Meet the Author.
Tsang S
J Orthod · 2024 Mar · PMID 38456264 · Publisher ↗
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