Journal of Periodontal and Implant Science最新文献

{"title":"Root coverage and patient-reported outcomes of de-epithelialized gingival graft with and without leukocyte platelet-rich fibrin in multiple recession defects: a split-mouth randomized trial.","authors":"Ahu Uraz Corekci, Cansu Gursoy, Deniz Ozbay Cetiner, Berceste Guler Ayyildiz, Serpil Cula","doi":"10.5051/jpis.2404300215","DOIUrl":"10.5051/jpis.2404300215","url":null,"abstract":"<p><strong>Purpose: </strong>This study was conducted to compare the clinical efficacy and patient-reported outcomes of de-epithelialized gingival graft (DGG) alone versus DGG combined with leukocyte platelet-rich fibrin (L-PRF) for the treatment of multiple adjacent gingival recessions using a coronally advanced flap technique.</p><p><strong>Methods: </strong>In this split-mouth randomized controlled trial, 15 patients with multiple gingival recessions affecting at least 3 adjacent teeth were treated on one side with DGG only (termed the DGG group) and on the contralateral side with DGG and L-PRF (the DGG+PRF group). Clinical parameters-recession depth, recession width, probing depth, clinical attachment level, keratinized tissue width, gingival thickness, and percentage of root coverage (RC%)-were recorded at 1 month, 3 months, and 6 months postoperatively. Patient-reported outcome measures, including Oral Health Impact Profile-14 scores, postoperative pain, bleeding, discomfort, and analgesic consumption, were also assessed.</p><p><strong>Results: </strong>At T6, the mean RC% was 93.30%±6.97% in the DGG group and 95.28%±4.99% in the DGG+PRF group, with no statistically significant difference observed. Patients receiving DGG+PRF reported significantly lower discomfort on days 2, 3, and 5 and reduced pain on days 6 and 7 relative to the DGG group.</p><p><strong>Conclusions: </strong>Combining L-PRF with DGG achieves root coverage outcomes comparable to DGG alone, while significantly reducing early postoperative discomfort and morbidity.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov Identifier: NCT06509867.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"3-18"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12962815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144276373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of L-shaped, loosely packed versus non-trimmed, compactly packed non-fixed collagenated bone blocks on the stability of augmented sites in chronic peri-implant dehiscence defects: a pre-clinical <i>in vivo</i> experimental study.","authors":"Dong-Woon Lee, Jae-Hong Lee","doi":"10.5051/jpis.2501840092","DOIUrl":"10.5051/jpis.2501840092","url":null,"abstract":"<p><strong>Purpose: </strong>This pre-clinical study aimed to compare the efficacy of L-shaped, loosely packed soft block bone substitutes (BBS, LP group) with that of non-trimmed, compactly packed soft BBS (CP group), both covered with a non-fixed collagen membrane, on augmentation stability and new bone formation in chronic peri-implant dehiscence defects treated with guided bone regeneration (GBR).</p><p><strong>Methods: </strong>In 4 mongrel dogs, 4 standardized box-shaped buccal defects were surgically created in each jaw. Following a 4-week period of spontaneous healing, a total of 32 dental implants were placed, with 2 implants inserted into each defect. Each defect was randomly assigned to either the LP or CP group. Statistical comparisons between groups were conducted using the Mann-Whitney <i>U</i> test. Bland-Altman and Spearman correlation analyses were also performed to evaluate the relationship and agreement between micro-computed tomography (micro-CT) and histomorphometric measurements.</p><p><strong>Results: </strong>Micro-CT and histomorphometric analyses revealed no significant differences in bone width at any apical level between the LP and CP groups. Both groups exhibited similar increases in bone width, although bone retention in the coronal region remained limited. Additionally, micro-CT tended to slightly overestimate bone width (mean difference, 0.31 mm), but showed a strong correlation with histomorphometric analysis (<i>r</i>=0.971, <i>P</i><0.001), supporting the reliability of radiographic methods for bone assessment.</p><p><strong>Conclusions: </strong>Neither LP nor CP soft BBS effectively prevented morphological collapse in the coronal region of augmented sites when used without additional membrane fixation. These findings underscore the necessity of enhanced stabilization techniques to improve structural integrity and bone regeneration in GBR procedures.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"72-82"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12962817/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144838326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between the miR-146a rs57095329 polymorphism and the risk of peri-implantitis.","authors":"Tao Yu, Feng Tian, Yuntong Yang","doi":"10.5051/jpis.2502460123","DOIUrl":"https://doi.org/10.5051/jpis.2502460123","url":null,"abstract":"<p><strong>Purpose: </strong>Emerging evidence highlights genetic susceptibility as a pivotal factor in the pathogenesis of peri-implantitis. The present study aimed to examine the potential association between the microRNA (miR)-146a rs57095329 polymorphism and susceptibility to peri-implantitis.</p><p><strong>Methods: </strong>A total of 230 patients with implant-supported dentures free of peri-implantitis and 230 patients diagnosed with peri-implantitis were recruited. Genotyping was performed using the restriction fragment length polymorphism polymerase chain reaction (PCR) technique, and miR-146a expression was analyzed using real-time qualitative PCR. The Hardy-Weinberg equilibrium test was used to confirm whether the genotype distribution matched expected values. Logistic regression analysis was then conducted to identify potential independent risk indicators.</p><p><strong>Results: </strong>miR-146a expression was significantly higher in the peri-implantitis group, with expression levels following the order: AA genotype > GA genotype > GG genotype. The AA genotype (odds ratio [OR], 2.753; 95% confidence interval [CI], 1.510-5.019; <i>P<</i>0.001) and the A allele (OR, 1.599; 95% CI, 1.220-2.094; <i>P<</i>0.001) were significantly associated with increased peri-implantitis risk. Mutations in the G allele may serve as a protective factor. The AA genotype showed the highest plaque index, and a significant positive correlation was observed between miR-146a expression levels and plaque index. In addition, patients with the AA genotype exhibited poorer periodontal indices and higher tumor necrosis factor-α levels compared with those carrying GG/GA genotypes. Indicators of periodontal health status, miR-146a levels, and the rs57095329 polymorphism may therefore serve as independent risk factors for peri-implantitis.</p><p><strong>Conclusions: </strong>The miR-146a rs57095329 polymorphism was significantly associated with susceptibility to peri-implantitis.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictors of buccal bone thickness in the esthetic zone of patients with gummy smile: a cross-sectional study.","authors":"Kitichai Janaphan, Hyun-Chang Lim, Kamon Budsaba, Thanasak Rakmanee","doi":"10.5051/jpis.2502400120","DOIUrl":"https://doi.org/10.5051/jpis.2502400120","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate buccal bone thickness (BT) patterns in the maxillary anterior region, examine correlations with clinical and radiographic parameters, and assess the predictive value of these parameters in patients with gummy smiles.</p><p><strong>Methods: </strong>Eighty-four gummy smile patients were included. Six anterior maxillary teeth (canine to canine) per patient were evaluated using clinical examination, digital photography, cone-beam computed tomography, and intraoral scanning. Pearson correlation and multiple regression analyses were performed.</p><p><strong>Results: </strong>Thick BT (>1 mm) was observed in 75.4% and 69.1% of teeth at 1 mm (BT1) and 3 mm (BT3) below the bone crest (BC), respectively. Thicker BT was more prevalent in males, canines, thick-flat gingival architecture, and sagittal root position class III. Positive correlations were found between BT at both levels and keratinized tissue width, smile line, crown width-to-length ratio, gingival thickness (GT) at the cementoenamel junction (CEJ), and sagittal root angulation. Negative correlations were identified between the CEJ-to-BC and gingival margin-to-BC distances and GT at 1 and 3 mm. Multiple regression analysis identified GT as the strongest predictor of BT.</p><p><strong>Conclusions: </strong>Gummy smile patients predominantly exhibit a thick bone morphotype. GT below the BC was the strongest negative predictor of BT. These distinct bone characteristics may affect treatment planning for esthetic procedures such as surgical crown lengthening.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Establishing cut-off values for salivary MMP-8 and IL-1β in the diagnosis of active periodontal disease: a preliminary cohort study toward the development of a diagnostic kit.","authors":"Kyoung-Hwa Kim, Gloria Ha Young Ahn, Yang-Jo Seol, Shin-Young Park","doi":"10.5051/jpis.2404200210","DOIUrl":"10.5051/jpis.2404200210","url":null,"abstract":"<p><strong>Purpose: </strong>The identification of specific target molecules and their appropriate cut-off values is crucial for the successful development of <i>in vitro</i> diagnostics. Salivary biomarkers, such as interleukin-1β (IL-1β) and matrix metalloproteinase-8 (MMP-8), have been investigated for their potential in diagnosing periodontal disease. This study aimed to evaluate the efficacy of IL-1β and MMP-8 as diagnostic tools and to establish their cut-off values for distinguishing active types of periodontal disease from healthy conditions.</p><p><strong>Methods: </strong>We conducted a prospective cohort study involving 47 participants, who were divided into 2 groups: the control group consisted of 24 individuals with healthy or mild periodontal conditions (stages I-II of periodontal disease), and the periodontal group comprised 23 individuals with moderate to severe periodontal disease (stages III-IV). Saliva samples were collected from all participants, followed by an oral examination, periodontal charting, and radiographic assessments. The salivary concentrations of IL-1β and MMP-8 were quantified using enzyme-linked immunosorbent assays.</p><p><strong>Results: </strong>Significant differences in salivary levels of IL-1β and MMP-8 were observed between the control group and those with periodontal disease. However, after adjusting for age and sex, these differences were not statistically significant for IL-1β. In contrast, the differences remained significant for MMP-8 in participants classified as having an active type of periodontal disease, specifically those in the periodontal group with more than 10% bleeding on probing. By setting a cut-off value of 200 ng/mL for salivary MMP-8, the sensitivity and specificity for diagnosing active periodontal disease were determined to be 70% and 86.5%, respectively.</p><p><strong>Conclusions: </strong>Our findings indicate that salivary MMP-8, using a cut-off value of 200 ng/mL, serves as a reliable biomarker for identifying active periodontal disease. This biomarker holds potential for further development into a diagnostic tool in <i>in vitro</i> settings, which could improve the early detection and management of periodontal disease.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"473-484"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12798325/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144276371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maxillary sinus hypoplasia relevant to dental implant treatment: a narrative review.","authors":"Won-Bae Park, Sofya Sadilina, Ji-Young Han, Daniel S Thoma, Hyun-Chang Lim","doi":"10.5051/jpis.2403600180","DOIUrl":"10.5051/jpis.2403600180","url":null,"abstract":"<p><p>This comprehensive narrative review provides an overview of the current scientific evidence regarding maxillary sinus hypoplasia (MSH). This review highlights several variants of MSH that are relevant to implant planning and treatment in daily clinical practice. MSH is characterized by a reduction in sinus volume, which contrasts with maxillary sinus pneumatization, a condition that has received more clinical attention. Nevertheless, certain types of MSH can significantly impact implant surgery and the management of associated complications. The maxillary sinus volume can be affected by factors such as infection, trauma, genetic predispositions, and changes within the sinus or adjacent anatomical structures, including the nasal cavity and the ethmoid sinus. In cases of MSH, the maxillary sinus floor is positioned more cranially than the nasal floor, and the distance between the lamina papyracea of the eye and the middle meatus antrostomy point increases horizontally. Several variants of MSH potentially affect implant therapy. Chronic maxillary sinus atelectasis, which results from persistent ostium blockage, may have clinical implications, particularly when implant-related infections occur in the MS. Inferior meatus pneumatization involves a lateral expansion of the nasal cavity, requiring a nasal floor elevation procedure when placing implants in the posterior maxilla. Additionally, the formation of an ethmomaxillary sinus may create a septum-like structure in the distal area of the maxillary sinus, necessitating two separate bone access windows during the sinus floor elevation procedure. Given these considerations, it is crucial for clinicians to be aware of MSH. Accurate diagnosis of MSH requires the use of 3-dimensional radiography techniques, such as cone-beam computed tomography.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"425-435"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12798398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144026334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of artificial intelligence-based diagnosis and classification of peri-implantitis compared with periodontal surgeon assessment: a pilot study of panoramic radiograph analysis.","authors":"Jae-Hong Lee, Yeon-Tae Kim, Falk Schwendicke","doi":"10.5051/jpis.2500280014","DOIUrl":"10.5051/jpis.2500280014","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to evaluate the diagnostic and classification performance of a deep learning (DL) model for peri-implantitis-related bone defects using panoramic radiographs, focusing on defect morphology and severity.</p><p><strong>Methods: </strong>A dataset comprising 1,075 panoramic radiographs from 426 patients with peri-implantitis was analyzed. A total of 2,250 implant sites were annotated and categorized based on defect morphology (intraosseous [class I], supracrestal/horizontal [class II], or combined [class III]) and severity (slight, moderate, or severe). The ensemble-based YOLOv8 DL model was trained on 80% of the dataset, with the remaining 20% reserved for testing. Performance was assessed using classification metrics, including accuracy, precision, recall, and F1 score. The diagnostic accuracy of the DL model was also compared with that of 2 board-certified periodontal surgeons.</p><p><strong>Results: </strong>The DL model achieved an overall accuracy of 85.33%, significantly outperforming the periodontal surgeons, who exhibited a mean accuracy of 75.6%. The DL model performed especially well for slight class II defects, with precision and recall values of 100% and 98%, respectively. In contrast, the periodontal surgeons demonstrated higher accuracy in severe cases, particularly for class II defects.</p><p><strong>Conclusions: </strong>DL enables reliable and accurate detection of peri-implantitis bone defects. It outperformed periodontal surgeons in overall accuracy, demonstrating its potential as a valuable second-opinion tool to support clinical decision-making. Future research should focus on expanding datasets and incorporating multimodal imaging.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"436-446"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12798360/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144023513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Achievements of the <i>Journal of Periodontal & Implant Science</i> in 2025, with appreciation to all.","authors":"Dae-Young Kang, Yong-Gun Kim, Shin-Young Park, Jae-Kook Cha, Hwan Tae Ahn, Jun-Beom Park","doi":"10.5051/jpis.255506edi01","DOIUrl":"https://doi.org/10.5051/jpis.255506edi01","url":null,"abstract":"","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":"55 6","pages":"423-424"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145906884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the quality and empathy of responses to patient questions on the Korean Academy of Periodontology's online question and answer section: a cross-sectional study comparing periodontists and an AI-powered chatbot.","authors":"Jae-Hong Lee, So-Hae Oh, Falk Schwendicke, Akhilanand Chaurasia, Young-Taek Kim","doi":"10.5051/jpis.2402220111","DOIUrl":"10.5051/jpis.2402220111","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate and compare the responses of an artificial intelligence (AI)-powered chatbot and professional periodontists to patient queries in periodontology and implantology, using the Korean Academy of Periodontology's (KAP) online question and answer (Q&A) section.</p><p><strong>Methods: </strong>In this comparative cross-sectional study, we analyzed 219 patient-submitted periodontal and implant knowledge questions from the KAP online Q&A section. A panel of 10 evaluators-5 periodontists and 5 laypersons-rated both the periodontist's and the AI chatbot's responses using standardized scales. We applied the <i>t</i>-test and Spearman correlation coefficients to compare response quality, empathy, consistency, and evaluator preferences.</p><p><strong>Results: </strong>Ten evaluators judged the AI chatbot's responses to be significantly superior in quality and empathy compared to periodontist replies. A higher proportion of periodontist responses fell below acceptable quality (\"very poor\" or \"poor\") than chatbot responses (28.7% vs. 15.0%; <i>P</i><0.001), and more chatbot replies were rated \"empathetic\" or \"very empathetic\" (62.5% vs. 42.8%; <i>P</i><0.001). Overall response consistency was deemed satisfactory at 64.2%, with no significant difference in consistency or preference between periodontist and lay evaluators.</p><p><strong>Conclusions: </strong>AI-powered chatbots can deliver more accurate and empathetic answers than human periodontists, suggesting their potential role as consultation assistants merits further investigation. The high intraclass correlation coefficient values (0.79-0.93) indicate a high level of agreement among evaluators in both the periodontist and lay evaluator groups, thus confirming the reliability and robustness of the study's assessment methodology.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"485-496"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12798413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144276372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis of novel damping capacity analysis devices for assessing implant stability in clinical practice.","authors":"Su-Bin Hong, Bo-Ah Lee, Woo-Ri Lee, Jung-Seok Lee, Young-Taek Kim","doi":"10.5051/jpis.2404680234","DOIUrl":"10.5051/jpis.2404680234","url":null,"abstract":"<p><strong>Purpose: </strong>Implant stability testing is crucial for verifying osseointegration before prosthetic loading. Several methods have been developed to assess osseointegration. Among these, damping capacity analysis (DCA) devices offer a user-friendly and non-invasive approach. In this study, we evaluated the accuracy and reliability of newly available DCA devices in assessing dental implant stability.</p><p><strong>Methods: </strong>This study included 58 implants from 37 patients over a 1-month period. Three measurements per implant were obtained with healing abutments in place, following the manufacturers' guidelines, using the DCA-P (Periotest M, Medizintechnik Gulden), DCA-A (Anycheck, Neobiotech), and DCA-T (The Trust, Dentium) devices. Factors such as healing abutment height, time since placement, bone grafting, fixture diameter, and fixture length were evaluated. Accuracy was assessed using DCA-P as the reference, and reproducibility was statistically analyzed using 3 measurements per implant. Statistical analyses were performed with SPSS Statistics 23.0 (IBM Corp.).</p><p><strong>Results: </strong>All implants that passed the stability tests using DCA devices were restored with definitive prostheses and showed no signs of early failure. The DCA-A value demonstrated a very strong correlation with the DCA-P value (DCAV-P), whereas the DCA-T value exhibited only a moderate correlation with DCAV-P. DCA-P also showed the highest reliability, followed by DCA-A and then DCA-T. The reliability of DCA-A and DCA-T was not significantly affected by any of the assessed factors; in contrast, DCA-P's reliability was significantly influenced by arch location and specific quadrant position.</p><p><strong>Conclusions: </strong>With DCA-P as the reference, DCA-A demonstrated superior accuracy compared to DCA-T. Although DCA-P exhibited the highest reliability, its performance was significantly affected by the positional factors of the target implant.</p>","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":"462-472"},"PeriodicalIF":3.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12798397/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144276370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}