The Journal Of Oral Implantology[JOURNAL]
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200 papers
Effect of Ultraviolet Photofunctionalization of Titanium Dental Implants on the Stability, Osseointegration Speed and Crestal Bone Loss in Controlled Diabetic Patients: A Split Mouth Randomized Clinical Trial.
Krishna DM, Gottumukkala SN, Raju MSN … +5 more , Penmetsa GS, Ramesh K, Kumar PM, Valli VS, Manchala B
J Oral Implantol · 2025 Aug · PMID 40420652 · Publisher ↗
Our objective was to evaluate and compare the effects of UV photofunctionalized (UVP) dental implants on implant stability, osseointegration, and radiographical bone changes with non-UV photofunctionalized (NUVP) dental...
Our objective was to evaluate and compare the effects of UV photofunctionalized (UVP) dental implants on implant stability, osseointegration, and radiographical bone changes with non-UV photofunctionalized (NUVP) dental implants placed in controlled diabetics. Participants were selected using stratified random sampling to ensure proportional representation of age groups, gender, and other relevant subgroups within the controlled diabetic population. The sites were randomly allocated into UVP and NUVP groups. In the UVP group, implants were photofunctionalized in a UV activator for 20 seconds before implant placement. Crestal bone changes were measured at 3- and 9-months postimplant placement. Descriptive statistics and paired t-tests were done to analyze intragroup and intergroup comparison study data. Implant stability and osseointegration were assessed using implant stability quotient (ISQ) and osseointegration index (OSI) immediately after implant placement and 3 months postplacement. Intragroup comparison of ISQ showed significantly higher ISQ (P = <.029) in the UVP group (4.40 ± 1.89) compared with the NUVP group (2.60 ± 1.17). The mean change in implant stability from baseline to 3 months was also significantly higher (P = .29) in the UVP group (4.4 ± 1.89) compared with the NUVP group (2.6 ± 1.17). A significantly higher mean OSI (P = .032) was noted in the UVP group (1.42 ± 0.62) compared with the NUVP group (0.84 ± 0.39). On comparison of mean crestal bone changes on the distal aspect, significantly higher mean bone loss (P = .003) was noted at 9 months in the NUVP group (0.64 ± 0.18) compared with the UVP group (0.35 ± 0.08). The UVP group showed greater benefits in enhanced secondary stability, higher OSI, and less crestal bone loss compared with the NUVP group in controlled diabetic patients.
Retrograde Peri-implantitis: A Scoping Review of Current Understanding of a Rare Complication in Dental Implants.
Banjar AA
J Oral Implantol · 2025 Aug · PMID 40415518 · Publisher ↗
Retrograde peri-implantitis is a rare complication of dental implants, characterized by symptomatic periapical lesions at the implant apex. Several etiological factors have been identified with an increased risk associat...
Retrograde peri-implantitis is a rare complication of dental implants, characterized by symptomatic periapical lesions at the implant apex. Several etiological factors have been identified with an increased risk associated with implants placed near teeth with periapical lesions. The present study undertook a scoping review to discuss the etiological factors and recent classification of retrograde peri-implantitis and summarize current literature-based guidelines for its management. An online database search was performed to identify studies related to retrograde peri-implantitis using the following terms: retrograde peri-implantitis, implant apical lesions, and periapical implant lesion. A total of 167 studies were initially identified, of which 38 met the inclusion criteria. These comprised case reports and retrospective studies, including 14 case reports that presented various management strategies for retrograde peri-implantitis. Half of these reports describe adjacent teeth with failed root canal treatments or periapical infections. Four studies utilized nonsurgical treatment to manage the lesion, including antibiotics for root canal treatment of the adjacent teeth. The remaining cases involved surgical interventions, such as implant debridement, apical resection, implant removal, and bone grafting. This review discusses the etiological factors of retrograde peri-implantitis, presents the recent classification of the lesion, and summarizes current literature-based guidelines for its management.
Fracture Strength of Conometric Joint Implants Versus Internal Hexagon Abutment Joint Design: An In Vitro Study.
Lorusso F, Gehrke SA, Tari SR … +1 more , Scarano A
J Oral Implantol · 2025 Aug · PMID 40415516 · Publisher ↗
The dental implant is an effective long-term procedure for oral edentulism due to its efficacy to support functional masticatory loading forces. The implant prosthetic joint is considered a key factor for interface stabi...
The dental implant is an effective long-term procedure for oral edentulism due to its efficacy to support functional masticatory loading forces. The implant prosthetic joint is considered a key factor for interface stability due to its biological and biomechanical implications. The present investigation aimed to evaluate the fracture strength of 2 different implant prosthetic joints. This investigation tested 10 implants for each group: a conometric implant joint (group I) and internal hexagon implant (group II). The implant abutment joint was coupled using a calibrated torquemeter. The samples were assessed using a loading fracture test and radiographically evaluated to observe the interface changes and deformations. The means and standard deviations of the group I and group II maximum force (N) were 553 ± 51 N and 432 ± 43 N. The Young elastic modulus of group I and group II implants were 183.97 ± 11.71 GPa and 143.72 ± 15.93 GPa. The conometric joint was reported to have a higher strength than the regular internal hexagon implant connection. The study findings could have clinical implications for implant durability and peri-implant tissue stability in favor of the conical joint design.
Comparison of Abutment Screw Loosening in Titanium Versus Zirconia Implants: An In Vitro Study.
Fathi A, Ebadian B, Arab S … +2 more , Salehi S, Atash R
J Oral Implantol · 2025 Aug · PMID 40415511 · Publisher ↗
Abutment screw loosening is a common complication in implant-based prostheses. Given the importance of esthetics in anterior regions, zirconia implants and abutments have been introduced. This study aims to compare the e...
Abutment screw loosening is a common complication in implant-based prostheses. Given the importance of esthetics in anterior regions, zirconia implants and abutments have been introduced. This study aims to compare the extent of abutment screw loosening between zirconia and titanium implants to determine the best treatment option. This in vitro study assessed abutment screw loosening in titanium and zirconia implants. Ten zirconia dental implant fixtures (10 mm in length, 4.3 mm in diameter) with 10 zirconia abutments and titanium screws were allocated in one group, and 10 titanium implant fixtures of the same dimensions with 10 titanium abutments and titanium screws were allocated to the other group. The abutment screws were tightened to a torque of 35 N/cm using a torque meter and placed in resin blocks. The center of the resin block then underwent a compressive force of 75 N and 12 400 cycles and a frequency of 75 cycles per minute. Furthermore, the removal torque value of each screw was measured. The data on screw loosening forces were analyzed and compared using a t test with a significance level set at 0.05. The average removal torque for titanium implants was 21.53 N/cm, whereas for zirconia implants, it was 18.46 N/cm. A t test comparison showed that titanium implants had a significantly higher removal torque value than zirconia implants (p < .001). In laboratory conditions, titanium implants exhibit significantly higher removal torque values than zirconia implants, suggesting they may offer better stability in similar clinical settings.
The Performance of PEKK vs Zirconia Abutments for Screw-Retained Crowns in Two-Piece Zirconia Implants: An in vitro Study.
Ahmed Z, Joos M, Joos R … +3 more , Rosentritt M, Kühl S, Herber V
J Oral Implantol · 2025 Aug · PMID 40400452 · Publisher ↗
This study aimed to compare the in vitro performance of anterior and posterior crowns with screw-retained polyetherketoneketone (PEKK) or zirconia abutments on two-piece zirconia implants. Monolithic incisor and molar zi...
This study aimed to compare the in vitro performance of anterior and posterior crowns with screw-retained polyetherketoneketone (PEKK) or zirconia abutments on two-piece zirconia implants. Monolithic incisor and molar zirconia crowns (n = 8 per group) were cemented on either PEKK or zirconia screw-retained abutments on zirconia implants. Molar and incisor crowns were also cemented on screw-retained titanium abutments on titanium implants as control. All specimens were subjected to combined mechanical loading (1.2 × 106 cycles of 50 N, f = 1 Hz) and thermal cycling (2 × 3000 × 5°C/55°C cycles of 2 minutes). Complications, such as loosening of the crowns and fractures, were observed. The surviving specimens were subjected to a fracture test. Descriptive statistics were applied to complications, survival times, and fracture forces. The occurrence of complications depended significantly on location (anterior or posterior) and material (P < .0001). While the incisor test groups presented higher failure rates for both PEKK and zirconia abutments, the survival rates of the molar-shaped crowns of both test groups were comparable with those of the titanium control group. This highly significant interaction is caused by a substantial difference in location for PEKK and zirconia (P < .05). The titanium control group showed uniform performance independent of the simulated site. PEKK abutments showed high survival rates for in vitro simulated molar sites. Screw-retained zirconia abutments have shown higher complication rates, especially in simulated anterior sites. Neither zirconia nor PEKK abutments are recommended in clinical application for anterior indication.
Radiographic Analysis of Ridge Augmentations Using Titanium Mesh and Titanium-Reinforced Polytetrafluoroethylene Membranes.
Elnakka L, Golob Deeb J, Carrico CK … +3 more , Jadhav A, Vaddi A, Deeb GR
J Oral Implantol · 2025 Aug · PMID 40400449 · Publisher ↗
Titanium-reinforced polytetrafluoroethylene (Ti-PTFE) and titanium mesh (Ti-mesh) are used to augment atrophic alveolar ridges to facilitate the placement of dental implants. This study aimed to evaluate and compare the...
Titanium-reinforced polytetrafluoroethylene (Ti-PTFE) and titanium mesh (Ti-mesh) are used to augment atrophic alveolar ridges to facilitate the placement of dental implants. This study aimed to evaluate and compare the average vertical and horizontal bone gain and outcomes between Ti-PTFE and Ti-mesh techniques. To assess outcomes, retrospective chart review and superimposition of preoperative and postoperative cone beam computerized tomography scans were used. The vertical component of the augmented site (L1) was assessed along a vertical bisecting line. Horizontal width was measured in buccolingual dimension at 3-mm intervals (W1-6) along the L1. Paired t tests were used to compare bone measurements at each location, and analysis of covariance models were used to compare the grafting methods. Successes were compared with chi-squared tests. Forty-eight ridge augmentation cases with 70 sites were included: 25 Ti-PTFE with 35 sites and 23 Ti-mesh with 35 sites. The average gain in length (L1) was statistically significant for Ti-PTFE, 0.75 mm, and nonstatistically significant for Ti-mesh, 0.61 mm. The average increase in width for Ti-PTFE was 2.05 mm, whereas for Ti-mesh, it was 2.42 mm. After adjusting for preoperative bone levels, Ti-PTFE had significantly greater gains at W1 than Ti-mesh. Seventy-six percent of the cases were considered successes with 74% for Ti-PTFE and 77% for Ti-mesh with no statistically significant difference. Both ridge augmentation techniques resulted in reliable horizontal bone gains, whereas a wide range of outcomes was observed for vertical bone gains.
The Significance of Keratinized Mucosa on Implant Health: An Umbrella Review.
Fathi A, Salehi S, Kazemi F … +1 more , Jazi SN
J Oral Implantol · 2025 Aug · PMID 40376768 · Publisher ↗
Peri-implantitis is one of the challenges during implant treatments. This study helps improve implant treatments and reduce the risk of peri-implantitis. This study aims to provide the most recent insights into the thera...
Peri-implantitis is one of the challenges during implant treatments. This study helps improve implant treatments and reduce the risk of peri-implantitis. This study aims to provide the most recent insights into the therapeutic effectiveness of keratinized mucosa for dental implants that support prostheses. An electronic search was conducted across various databases, adhering to language restrictions and following PRISMA guidelines until August 2024. The PICO study question was: "For functioning dental implants, how effective is keratinized mucosa in enhancing peri-implant soft tissue conditions?" The eligibility requirements included all systematic reviews and meta-analyses that examined the impact of keratinized mucosa on the health of implants. Two qualified researchers evaluated the criteria independently while assessing the risk of bias associated with the selected articles. A third investigator is available to resolve any ambiguities that may arise during this process. A total of 10 research studies were found that investigated the impacts of keratinized mucosa on implant health. Involving 7139 participants, the findings indicated that a reduced width of keratinized tissue (KT) was linked to a higher incidence of increased plaque accumulation, soft tissue inflammation, and mucosal recession. The width of KT was notably linked to a reduction in inflammation around the implant. The presence of keratinized mucosa around dental implants correlates with improved peri-implant tissue health and a reduced risk of peri-implantitis. Nonetheless, further data are required.
Comparison of Subperiosteal Implant Designs Applied to Atrophic and Edentulous Mandible Under Traumatic Forces: 3D Finite Element Analysis.
Arı I, Acar G, Baş İD … +1 more , Tosun E
J Oral Implantol · 2025 Jul · PMID 40376767 · Publisher ↗
This study evaluated the stress distributions of subperiosteal implants (SPI) made of titanium and polyetheretherketone (PEEK) in 1-piece and 2-piece designs in edentulous and severely atrophic mandibles subjected to tra...
This study evaluated the stress distributions of subperiosteal implants (SPI) made of titanium and polyetheretherketone (PEEK) in 1-piece and 2-piece designs in edentulous and severely atrophic mandibles subjected to trauma forces. This study applied 4 treatment methods to a severely atrophic edentulous mandibular model. Subperiosteal implant designs made of PEEK consisting of 1 piece in model 1 and two in model 2 were used. Subperiosteal implant designs made of titanium composed of 1 piece in model 3 and two in model 4 were used. Each of the subperiosteal implants was fixed on the mandibular model with 14 osteosynthesis screws placed in the tension lines of the mandible. A traumatic force of 2000 N was applied to the mandibular prosthesis in the anteroposterior direction. Maximum principal stress (Pmax), minimum principal stress (Pmin), and Von Mises stress (VMs) values were measured in MPa. In this study, model 3 showed the highest Pmax value in the symphysis region (45.888 MPa), whereas the values in the other models were similar. The mandibular condyle had the highest Pmax in model 2 (941.338 MPa) and the lowest in model 3 (905.756 MPa). All models compared the Pmin values measured in the symphysis, alveolar crest, and condyle region. The VM stress values on the abutments and abutment screws were lower and more stable in PEEK SPI models than titanium SPI models. However, VMs values on titanium SPI metal frameworks were lower than PEEK SPI models. In this finite element analysis, 1-piece PEEK SPI were the most advantageous design regarding mandibular fracture risk when evaluated under traumatic forces. PEEK SPI treatment may provide a less invasive treatment model for patients with severely atrophic mandibles. Additionally, 2-piece subperiosteal implants may provide greater design flexibility in clinical applications and offer advantages in stress distribution, expanding the range of treatment options available to clinicians.
The Effect of Cantilever Planning on Stress Distribution in Implant-Supported Prostheses.
Ateşalp İleri S, Güntekin N, Mohammadi R
J Oral Implantol · 2025 Aug · PMID 40376758 · Publisher ↗
This finite element analysis study investigates the effects of different cantilever designs on stress distribution in implant-supported partial fixed dental prostheses. Three models were analyzed in the posterior mandibl...
This finite element analysis study investigates the effects of different cantilever designs on stress distribution in implant-supported partial fixed dental prostheses. Three models were analyzed in the posterior mandible: model A with a distal cantilever, model B with a mesial cantilever, and model C with no cantilevers. Each model included a 4-unit monolithic zirconia prosthesis supported by 2 implants. Under a 200-N oblique load, stress distribution was analyzed in the cortical and trabecular bone, implant components, cement layer, and prosthesis. Fatigue performance was assessed using material-specific S-N curves and fatigue equations. The results demonstrated that models with cantilever extensions exhibited increased stress accumulation, particularly in components adjacent to the cantilever. The highest von Mises stress values were observed in model A, especially on the distal abutment (721.2 MPa), distal implant (313.7 MPa), and prosthetic structure (409.9 MPa). In contrast, model B showed a more balanced stress distribution and lower stress levels than model A. The findings suggest that cantilever presence and positioning significantly impact implant-supported prostheses' biomechanical behavior. With its shorter lever arm and more favorable force distribution, the mesial cantilever was a safer and more effective design option than the distal cantilever, reducing the risk of mechanical complications. These results emphasize the importance of careful design and engineering calculations when planning implant-supported prostheses to ensure long-term stability and minimize the likelihood of failure. This study highlights the biomechanical implications of cantilever positioning in implant prostheses.
Long-Term Success of rhBMP-2 in Maxillofacial Bone Regeneration: A 10-Year Case Study.
Schneider T, Dias B, Arroyo E … +2 more , Rutkowski JL, Mourão CF
J Oral Implantol · 2025 Jul · PMID 40370119 · Publisher ↗
Recombinant human bone morphogenetic protein-2 (rhBMP-2) has emerged as an alternative to autogenous bone grafts in maxillofacial surgery, reducing donor-site morbidity while promoting osteoinduction. This case report ev...
Recombinant human bone morphogenetic protein-2 (rhBMP-2) has emerged as an alternative to autogenous bone grafts in maxillofacial surgery, reducing donor-site morbidity while promoting osteoinduction. This case report evaluates the 10-year outcomes of rhBMP-2 use for mandibular bone regeneration in a 55-year-old male with extensive periapical osteolytic lesions on teeth #23, #24, #25, and #26 linked to childhood trauma. Following extraction, curettage, and rhBMP-2 grafting with a collagen membrane and titanium mesh, 3 implants (2.9 × 12 mm) were placed after 6 months, followed by osseointegration and a connective tissue graft for prosthetic rehabilitation. Over 10 years, clinical and radiographic assessments indicated stable bone levels (<1 mm crestal loss) and implant success with no complications reported despite acknowledged risks of edema or carcinogenesis. This case aligns with the literature supporting rhBMP-2 efficacy (81.4% bone regeneration success) and underscores the importance of delivery systems in optimizing outcomes. Continued research investigating dosing and carriers is warranted to enhance its application in implant dentistry.
Impact of High Insertion Torque on Pain: A Randomized Split-Mouth Clinical Trial.
Kanmaz MG, Çınarcık S
J Oral Implantol · 2025 Jul · PMID 40344659 · Publisher ↗
During and after implant surgery, pain is one of the most frequent complaints, and its intensity is thought to be influenced by a variety of factors. This study aimed to examine the association between insertion torque v...
During and after implant surgery, pain is one of the most frequent complaints, and its intensity is thought to be influenced by a variety of factors. This study aimed to examine the association between insertion torque values and patients' pain levels measured with the visual analog scale and investigate the relationship between insertion torque, implant stability quotient, and Periotest values. This study was designed as a randomized, controlled, split-mouth clinical trial. Fifteen patients with bilateral single tooth loss in the posterior mandible were included. A total of 30 implants were randomly placed with high insertion torque (≥50 Ncm) on one side and regular insertion torque (<50 Ncm) on the other side in the same operation. The insertion torque, implant stability quotient, Periotest values, and preoperative anxiety and postoperative pain levels were recorded. Mean insertion torque values for high and regular insertion torque groups were 77.27 ± 5.77 Ncm and 30.47 ± 8.33 Ncm, respectively. Pain levels were higher in the high insertion torque group than the regular insertion torque group on the operation day (p = .016) and the following day (p = .007). Furthermore, correlations were observed between insertion torque, implant stability quotient, and Periotest values (p < .05). The study found that implants placed with high insertion torque had higher reported pain levels on the day of the operation and the following day.
Maxillary Implant-Supported Overdenture in a Heavy Smoker Patient With Generalized Stage IV Grade C Periodontitis: A Clinical Case Report.
Prechtl C, Pretzl B, Brauer HU
J Oral Implantol · 2025 Jul · PMID 40302240 · Publisher ↗
We present a clinical case report of a 54-year-old female heavy smoker (30 pack-years) with generalized periodontitis stage IV grade C who underwent implant surgery and prosthetic rehabilitation following the failure of...
We present a clinical case report of a 54-year-old female heavy smoker (30 pack-years) with generalized periodontitis stage IV grade C who underwent implant surgery and prosthetic rehabilitation following the failure of her natural dentition in the maxilla. The surgical treatment involved the insertion of 4 implants with a bilateral external sinus procedure, and the decisions and steps taken to achieve the final treatment outcome were discussed in detail. This highlights the challenges in patient management as the need for sufficient oral hygiene and cooperation is mandatory due to the increased failure rates in smokers. After a healing phase of several months, uncovering was performed, and the prosthetic treatment was carried out. A palate-free fixed prosthesis with a computer-aided design/computer-aided manufacturing bar was inserted. This case illustrates a challenging treatment plan, considering the patient's desire for a relatively cost-effective, fixed, and palate-free restoration of the maxilla.
O. Hilt Tatum Jr, DDS - A Pioneer for Implant Dentistry and AAID Leader.
Gibney JW
J Oral Implantol · 2025 Apr · PMID 40301004 · Publisher ↗
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Preoperative Simulation with 3D-Printed Models for Bilateral Inferior Alveolar Nerve Lateralization: A Case Report with 6.5-Year Follow-Up and Literature Review.
Li B, Sun Y, Fu L … +1 more , Zhou Y
J Oral Implantol · 2025 Apr · PMID 40260527 · Publisher ↗
Inferior alveolar nerve lateralization (IANL) is a viable treatment option for managing severely atrophic posterior mandibles with dental implants. However, this approach is frequently accompanied by postoperative neuros...
Inferior alveolar nerve lateralization (IANL) is a viable treatment option for managing severely atrophic posterior mandibles with dental implants. However, this approach is frequently accompanied by postoperative neurosensory disturbance (NSD). This report described a procedure for bilateral IANL with simultaneous implant placement using 3D printing in preoperative planning and concentrated growth factor (CGF). 3D printed models enabled surgeons to gain a detailed understanding of the underlying anatomy and improve the precision of the surgical path. CGF was wrapped around the neurovascular bundle to promote the recovery of nerve function. The case revealed complete neurological recovery 2 months after surgery and stable implant osseointegration with regenerated inferior alveolar nerve wall at 6.5 years of follow-up. In addition, a literature review was performed to evaluate the outcomes of IANL and the incidence of NSD. With careful preoperative planning, appropriate procedure, and precise surgical technique, IANL can be successfully used for implant placement in the severely atrophic posterior mandibular regions.
A Review of the Application and Progress of the Socket Shield Technique in Implant Restoration.
Fan N
J Oral Implantol · 2025 Jul · PMID 40177740 · Publisher ↗
The Socket Shield Technique (SST) is a method that aims to preserve the alveolar bone and reduce postextraction bone resorption by retaining part of the tooth root; despite significant advancements in immediate implant p...
The Socket Shield Technique (SST) is a method that aims to preserve the alveolar bone and reduce postextraction bone resorption by retaining part of the tooth root; despite significant advancements in immediate implant placement and bone regeneration techniques in implant dentistry, alveolar bone resorption after tooth extraction remains a major clinical challenge, with current methods failing to prevent bone remodeling completely. This review aims to summarize the application progress of SST in implant restoration, discuss its advantages and limitations, and analyze key issues in its clinical application. By reviewing the existing literature, we conclude that SST, as a considerable potential treatment approach, the effectiveness of SST is still influenced by factors such as the three-dimensional position of the tooth slice, bone graft materials, and surgical procedures. However, it offers significant benefits, including the effective preservation of bone resorption, reduction in the need for bone augmentation procedures, high implant survival rates, and favorable clinical outcomes. SST provides a potential therapeutic paradigm for immediate implant placement, offering significant clinical value and research significance.
Assessment of Mental and Lingual Foramen, Mandibular Canal, and Maxillary Sinus by CBCT in Southern Mexico. How Important Is It?
Alarcón-Sánchez MA, Díaz-Flores Y, Reyes-Fernández S … +6 more , Sandoval-Guevara D, Hernández-Treviño N, Hernández-Pérez F, Hernández-Baños ÓR, Toral Rizo VH, Romero-Castro NS
J Oral Implantol · 2025 Jul · PMID 40123423 · Publisher ↗
This study aimed to determine the frequency of anatomical variants of the jaws considered critical and their limitations in implant surgical procedures by analyzing cone beam computed tomography (CBCT) scans. A random sa...
This study aimed to determine the frequency of anatomical variants of the jaws considered critical and their limitations in implant surgical procedures by analyzing cone beam computed tomography (CBCT) scans. A random sample of 46 CBCT images was retrieved. Computed tomography (CT) scans with correct visualization of the anatomical area to be studied with different fields of view (FOV) were included: 5X5, 8X5, and 8X8. Ex3D-plus software was used to obtain the various measurements of each patient. The statistical program STATA V.15 was used, and P ≤ .05 was considered significant. In total, 6 anatomical structures corresponding to 46 CBCT images were analyzed. Seventy-eight percent of mentonian foramen (n = 39) were oval, while 16% (n = 8) were circular. In 81% of the CT scans (n = 21), no accessory mentonian foramen were seen. In 100% of patients (n = 25), anterior loops were present. In addition, 96% (n = 24) presented lingual foramen. According to gender, it was found that the average distance between the maxillary sinus floor and the disto-vestibular and palatal apices of the upper second molar was significantly greater in men than in women (P ≤ .05). In conclusion, dentists should have a comprehensive knowledge of the anatomy of the maxillofacial. Based on the results reported in our study, it should be considered that structures that have been classically determined to be inconstant, such as the lingual foramen and the anterior loop, should now be considered part of normal anatomy.
Reconstruction of Atrophic Alveolar Process With Xenograft, Fibrin-Rich Plasma, Titanium Mesh, Implant Placement, and Immediate Provisionalization.
Reyes-Fernández S, Sandoval-Guevara D, Giles-Martínez F … +4 more , Hernández-Pérez F, García-Verónica A, Salmerón-Valdés EN, Romero-Castro NS
J Oral Implantol · 2025 Jul · PMID 40115989 · Publisher ↗
Placement of dental implants is often compromised due to alveolar ridge resorption caused by postextraction defects, periodontal disease, traumatic tooth avulsion, or long-term edentulism. During the last 2 decades, vari...
Placement of dental implants is often compromised due to alveolar ridge resorption caused by postextraction defects, periodontal disease, traumatic tooth avulsion, or long-term edentulism. During the last 2 decades, various techniques have been proposed for reconstructing atrophic alveolar processes. Different therapeutic modalities have been implemented to achieve bone gain. These techniques require an orderly sequence of maneuvers, which involves handling the soft and hard tissues to minimize the risk of complications. A clinical case of reconstruction of an atrophic alveolar process with xenograft, fibrin-rich plasma (FRP), and titanium mesh; placement of an implant; and immediate provisionalization is reported. The reported case had a significant horizontal and vertical bone deficiency. The combination of different elements, such as the xenograft combined with FRP, the placement of a titanium mesh, and the final coverage of the mesh with an FRP membrane, resulted in a gain not only in the horizontal but also in the vertical direction.
Implant-Prosthetic Rehabilitation of the Edentulous Mandible in a Patient With Class III Malocclusion and a Retrognathic Maxilla.
Brauer HU, Hellmann D, Rinke S … +1 more , Prechtl C
J Oral Implantol · 2025 Jul · PMID 40115971 · Publisher ↗
Over the past few years, innovations in computer-aided design/computer-aided manufacturing (CAD/CAM) processes have allowed for manufacturing bar-retained constructions made of titanium or a cobalt-chrome alloy to secure...
Over the past few years, innovations in computer-aided design/computer-aided manufacturing (CAD/CAM) processes have allowed for manufacturing bar-retained constructions made of titanium or a cobalt-chrome alloy to secure the position of overdentures. Here, the authors demonstrate the challenges of implant-prosthetic mandibular rehabilitation of a male 71-year-old patient with a reconstructed left-sided clefting congenital deformity and class III malocclusion with anterior crossbite and retrognathic maxilla. This case illustrates that the rehabilitation of an edentulous mandible with 4 intraforaminal implants and a CAD/CAM-fabricated bar with an overdenture can offer satisfactory prosthetic rehabilitation. In the present case, a bar-retained construction was the rehabilitation concept of choice, meeting the patient's request for restoration similar to the restorative concept in the maxilla and the correction of the reverse overjet in the anterior region.
Retrospective Radiographic Analysis and Treatment Outcomes of Patients With Congenitally Missing Maxillary Lateral Incisors.
Hjerppe J, Lehmijoki M, Suomalainen A … +1 more , Stoor P
J Oral Implantol · 2025 Jul · PMID 40106832 · Publisher ↗
Replacing congenitally missing teeth can be challenging due to anatomical limitations. This retrospective radiographic study aimed to evaluate (1) the dimensions of the alveolar ridge in congenitally missing maxillary la...
Replacing congenitally missing teeth can be challenging due to anatomical limitations. This retrospective radiographic study aimed to evaluate (1) the dimensions of the alveolar ridge in congenitally missing maxillary lateral incisor sites and (2) whether straightforward implant placement and placement in a prosthetically ideal position was possible. CBCT images of the maxillary alveolar ridge were measured at 3, 8, and 13 mm from the planned crown margin in a labio-palatal and mesio-distal dimension. Virtual implant planning was completed in 3D planning software to evaluate whether the straightforward placement of a 3-mm wide and 10-mm long implant (with 1.5 mm safety distance to neighboring teeth; 1 mm bone wall on the buccal and palatal aspect of the implant) was possible in a prosthetically driven position. Twenty-three patients with 39 missing maxillary lateral incisors were analyzed. The mean (SD) of the alveolar ridge labio-palatal width was varying, 4.6 mm (1.3) at 3 mm, 5.6 mm (1.2) at 8 mm, and 7.8 mm (1.9) at 13 mm. Radiologically straightforward implant placement was possible in 56.4% (n = 22) of the sites. In 5 sites (22.7%) where straightforward implant placement was possible, the implants could be planned in a prosthetically driven position. According to patient records, straightforward implant placement was performed in 33.3% (n = 13) of the cases, 5 of them in prosthetically driven position. In congenitally missing maxillary lateral incisor sites, the alveolar ridge width is limited in the labio-palatal direction and might affect the possibility of straightforward and prosthetically driven implant placement.
Von Mises Equivalent Stresses Developed in Fixed Partial Denture Infrastructures on Implants According to Changes in Their Prosthetic Materials.
Toniollo MB, Dos Reis KEM, Sakamoto SPDS … +5 more , Terada ASSD, Paranhos LR, Macedo AP, Silva RCDD, Limirio PHJO
J Oral Implantol · 2025 Jul · PMID 40091293 · Publisher ↗
Fixed partial prosthesis with a suspended intermediate element on implants (pontic) can reduce costs and/or make viable cases with limitations in the supporting bone structure. Greater biomechanical demands on the system...
Fixed partial prosthesis with a suspended intermediate element on implants (pontic) can reduce costs and/or make viable cases with limitations in the supporting bone structure. Greater biomechanical demands on the system and variation in the materials of the prosthetic infrastructures could interfere with the stresses developed. This study aimed to verify and compare these stresses in prosthetic infrastructures according to the variation in the material used to make them. The von Mises equivalent stresses (VMES) were qualitatively and quantitatively analyzed in the most significant stress areas in these infrastructures, which were divided into different experimental groups: cobalt-chrome (CoCr); nickel-chromium (NiCr); titanium (Ti); zirconia (Zr); lithium disilicate (LD); type IV gold (Au); and acrylic resin (AR). They were then analyzed using the finite element method (FEM) to verify the stresses developed, as well as their intensity and scope, using a color scale generated in a virtual computer analysis environment (Ansys Workbench Software). The results allowed us to observe that different stresses are generated in the material used in the prosthetic infrastructure, depending on its variation. A directly proportional relationship was found between the stiffness of the material and the stresses generated, meaning that greater rigidity results in greater stresses. It is important to highlight that there was no imminent risk of harm to the biomechanics in any varying situation in the infrastructure material, except acrylic resin, which reached stress thresholds in the prosthetic structure close to its maximum flexural resistance.
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