The International journal of periodontics & restorative dentistry最新文献

{"title":"Esthetic and Colorimetric Assessment of Peri-implant Soft Tissue Augmented with the Strip Gingival Graft Harvested Either from the Buccal Soft Tissue or the Palate: A Retrospective Study.","authors":"Istvan A Urban, Leonardo Mancini, Samuel Akhondi, Lorenzo Tavelli","doi":"10.11607/prd.7476","DOIUrl":"https://doi.org/10.11607/prd.7476","url":null,"abstract":"<p><p>It is well known that keratinized mucosa (KM) plays a crucial role for maintaining peri implant health and esthetic outcomes. The Strip Gingival Graft (SGG) technique, which involved an apically positioned flap (APF), in combination with an autogenous SGG and a xenogeneic collagen matrix (XCM), demonstrated its efficacy in re-establishing an adequate amount of KM width at implant sites. Nevertheless, it is still unclear whether harvesting the SGG from the palate (pSGG) or from the buccal aspect of natural dentition (bSGG) affects the esthetic outcomes at the augmented implant sites. Therefore, the objective of the present study was to compare the esthetic outcomes of dental implants augmented with either bSGG &#43; XCM or pSGG &#43; XCM. The present study was designed as a single-center retrospective study, assessing the esthetic and colorimetric outcomes of peri-implant KM augmentation with either pSGG &#43; XCM or bSGG &#43; XCM in cohort of 49 subjects. The two groups were compared in terms of colorimetric outcomes, assessed on clinical photograph using specific software able to identify and quantify the predominant color within the peri implant soft tissue. Colorimetric comparisons with adjacent untreated sites were also investigated. In addition, the Pink Esthetic Score (PES) and the Subjective Esthetic Score (SEE) were performed to further assess the esthetic outcomes of pSGG &#43; XCM and bSGG &#43; XCM. The colorimetric analysis did not show statistically significant differences among sites augmented with pSGG &#43; XCM, sites augmented with bSGG &#43; XCM, and untreated sites. Implants treated with bSGG &#43; XCM showed significantly greater PES (in terms of shape of the mesial and distal papilla, level of the soft tissue margin, soft tissue contour, anatomy of the alveolar process, and final PES) and SEE compared to implants augmented with pSGG &#43; XCM. The present study demonstrated that implant sites augmented with APF with either pSGG &#43; XCM or bSGG &#43; XCM did not show different colorimetric outcomes compared to adjacent untreated sites, while bSGG &#43; XCM obtained superior professional and subjective esthetic scores compared to pSGG &#43; XCM.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Clinical Outcomes of Two Different Zygomatic Implant Protocols for the Rehabilitation of Severely Atrophic Maxillae: A Retrospective Analysis.","authors":"Nicola Ferrigno, Mauro Laureti, Abdusalam Alrmali, Claudia Lorenzi, Hom-Lay Wang, Paolo Carosi","doi":"10.11607/prd.7493","DOIUrl":"https://doi.org/10.11607/prd.7493","url":null,"abstract":"<p><strong>Purpose: </strong>This retrospective study aimed to compare extended sinus lift and extramaxilla surgical protocols for restoring severely atrophic maxillae with zygomatic implants (ZIs) and evaluate their clinical effectiveness.</p><p><strong>Materials and methods: </strong>The study includes patients who were treated at a dental clinic in Italy from 2012 to 2022. These patients received fixed screw-retained complete dentures supported by either two or four zygomatic implants (ZIs). The patients underwent a minimum one-year follow-up post-loading, following two protocols: the hybrid and the quad protocol. Digital planning incorporated CBCT scans, intraoral scans, and digital prosthetic plans within implant planning software. Surgical techniques involved extended sinus lift and extramaxilla techniques methods, utilizing the ZAGA approach for ZI placement.</p><p><strong>Results: </strong>The results showed that out of 19 patients with a mean age of 65.3, a total of 56 zygomatic implants (ZIs) and 20 standard implants were used, with no failures observed in either the implants or the definitive prostheses, resulting in a 100% survival rate. According to the ORIS criteria, overall success was achieved in terms of implant stability, sinus health, peri-implant soft tissue condition, and prosthetic function. Only two ZIs (3.6%) exhibited minor gingival recession and moderate thread exposure, which were closely monitored through professional hygiene maintenance.</p><p><strong>Conclusion: </strong>Both the extended sinus lift and extramaxilla protocols demonstrated comparable clinical outcomes and minimal complications in the restoration of severely atrophic maxillae with Zygomatic Implants (ZIs). However, further extensive studies involving larger, multicenter designs and longer follow-up periods are needed to validate and refine these outcomes.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-23"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunneled Coronally Advanced Flap and Connective Tissue Graft Wall for the Treatment of Isolated Infrabony Defect Associated with Gingival Recession: Technical Report with Cases.","authors":"Po-Jan Kuo, Yudai Ogawa, Jonathan H Do, Tsung-Hsun Wu, Nancy Nie-Shiuh Chang, Lorenzo Tavelli","doi":"10.11607/prd.7479","DOIUrl":"https://doi.org/10.11607/prd.7479","url":null,"abstract":"<p><p>The integrity and phenotype of periodontal soft tissues significantly influence the outcome of surgical periodontal regenerative therapy. In cases with thin gingival phenotype, treating infrabony defects surgically can worsen gingival recession and loss of papillae. This report outlines a surgical approach for addressing infrabony defects at sites with gingival recession and thin phenotype. The treatment involves using a tunneled coronally advanced flap (TCAF) to obtain access for defect debridement, root instrumentation, graft placement, and tissue advancement for root coverage. A connective tissue graft (CTG) is secured to the two teeth flanking the infrabony defect with two subperiosteal sling (SPS) sutures to create a buccal soft tissue wall and to tent up the papilla overlying the defect to provide and maintain the necessary space for biomaterials and clot stability. The treatment significantly improved interproximal clinical attachment levels, tissue phenotype, and root coverage one-year post surgery. Treatment outcomes suggest that this approach may be used to effectively treat isolated infrabony defects associated with gingival recession.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-30"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneously Modified Onlay Soft Tissue Graft and Apically Positioned Flap for Implant Phenotype Modification: A Case Series.","authors":"Ramón Gómez Meda, Javier Calatrava, Jon Misch, Hom-Lay Wang","doi":"10.11607/prd.7412","DOIUrl":"https://doi.org/10.11607/prd.7412","url":null,"abstract":"<p><p>Bone augmentation procedures often leads to coronal displacement of the mucogingival junction, a deficiency of keratinized mucosa, and a reduction in soft tissue height. These challenges complicate the achievement of an ideal peri-implant phenotype. It is known that addressing both the quantity and quality of soft tissue is crucial for the long-term success and aesthetics of implants. This paper introduces a novel technique for peri-implant phenotype modification following bone augmentation, which combines a modified onlay graft (MOG) with an apically positioned flap (APF) performed simultaneously with implant placement. Two clinical cases are presented to demonstrate this approach, highlighting the restoration of the soft tissue environment through a single surgical intervention. The technique resulted in successful outcomes, including increased vestibular depth, keratinized tissue width, and vertical soft tissue volume. The modified onlay graft technique effectively manages soft tissue in post-bone augmentation scenarios, providing an ideal peri-implant phenotype and leading to stable, aesthetic, and functional implant restorations. This method requires fewer surgical interventions than traditional alternatives, minimizing patient discomfort and enhancing overall treatment outcomes.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-26"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bone Regeneration Following Implantoplasty: A Retrospective Cohort Study with Long-Term Radiographic Assessment.","authors":"Philippe Khayat, David Aidan, Javier Calatrava, Hom-Lay Wang","doi":"10.11607/prd.7422","DOIUrl":"https://doi.org/10.11607/prd.7422","url":null,"abstract":"<p><p>Implantoplasty involves mechanically modifying the exposed implant surface by removing macro- and micro-structures and is typically considered a resective approach. The potential for bone regeneration with implantoplasty alone has not yet been studied. This research aimed to evaluate long-term changes in peri-implant bone levels without using regenerative materials. 56 patients (70 implants) were included in the study and were followed for up to 10 years, with a mean observation time of 59 months (~5 years). The implants were evaluated retrospectively through a radiographic, as well as clinical (bleeding on probing and suppuration) analysis. Out of the 70 implants, 11 (15.7%) were lost due to disease recurrence and additional bone loss. One implant (1.4%) experienced up to 1.0 mm of bone loss, 15 implants (21.4%) showed no change in marginal bone levels (MBL), and 43 implants (61.5%) gained bone up to 4.8 mm, all without the use of any graft material or membrane. The overall mean MBL change for the remaining 59 implants at the end of the follow-up period (84.3%) was a gain of 1.27 mm. Implantoplasty alone without osseous surgery, flap repositioning, or using graft material or membrane; may be a viable option for managing peri-implantitis defects. However, future randomized clinical trials with larger sample sizes are necessary to validate current findings.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revolutionizing Laminate Veneer Bonding: Laser Versus Acid Etching of Enamel.","authors":"Khaled Abid Althaqafi","doi":"10.11607/prd.7384","DOIUrl":"https://doi.org/10.11607/prd.7384","url":null,"abstract":"<p><strong>Purpose: </strong>This study is designed to explore the effect of Er,Cr:YSGG laser tooth etching versus that of conventional tooth surface treatment on the shear bond strength of ceramic laminate veneers.</p><p><strong>Methods: </strong>Seventy-six maxillary premolars were assigned to two groups (n = 38) according to the type of enamel surface treatment approach. Group 1: samples treated with the conventional acid-etch protocol. Group 2: samples subjected to Er,Cr:YSGG laser. Light-curing resin cement was used to bond the restoration to the tooth and specimens were thermocycled for 30,000 cycles. Shear bond strength testing was conducted on all the specimens. The samples were observed using a scanning electron microscope to record enamel topography and a stereomicroscope to monitor the mode of failure. P ≤ 0.05 was considered significant.</p><p><strong>Results: </strong>There were no statistically significant differences between the acidetch and laser enamel surface treatment groups for the shear bond strength values at maximum load (MPa) (p-value = .627). There was a significantly higher proportion of cohesive failure in the acid-etch group compared to the laser treatment group and a significantly lower proportion of mixed failure in group 1 compared to group 2 (p-value = .022).</p><p><strong>Conclusions: </strong>Concerning the bond strength of the laminate veneer, the effects of laser and traditional acid etching on the enamel surface were the same. Enamel surfaces can be successfully etched using a laser as an alternative to the traditional acid-etch method.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immature Tooth Autotransplantation with Buccal Bone Fenestration Treated with GBR and Immature Tooth Autotransplantation in Regenerated Bone: Proof of Principles with Medium- (55 Months) to Long-Term (252 Months) Follow-ups.","authors":"Tiziano Testori, Massimo Simion, Francesco Giachi Carù, Stefano Corbella, Silvio Taschieri, Giovanna Perrotti, Renato Cocconi, Javier Calatrava, Ann Decker, Hom-Lay Wang","doi":"10.11607/prd.7356","DOIUrl":"https://doi.org/10.11607/prd.7356","url":null,"abstract":"<p><strong>Background: </strong>Tooth autotransplantation is a reliable procedure with high long-term success and survival rates, showing many advantages over dental implants, particularly for young patients in craniofacial development. Nonetheless, insufficient bone availability at the recipient site is a key limitation. This study aims to establish the feasibility of tooth autotransplantation combined with staged or simultaneous bone regeneration to address complex cases.</p><p><strong>Material & methods: </strong>Two young patients with missing teeth due to hypodontia or trauma, deemed unsuitable for dental implants, were treated. Both complex cases were addressed through autologous tooth autotransplantation, either in conjunction with simultaneous guided bone regeneration or into a previously regenerated crest.</p><p><strong>Results: </strong>Five-year follow-up for the autotransplanted cuspid and more than 20-year follow-up for the premolar revealed satisfactory results for both autotransplanted teeth. These teeth played pivotal roles in restoring both function and aesthetics in young patients. Additionally, tooth vitality was preserved throughout the follow-up period, with no complications noted.</p><p><strong>Conclusion: </strong>Tooth autotransplantation in combination with previous or simultaneous guided bone regeneration proved to be effective in restoring function and aesthetics in complex situations in young patients.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-22"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Opacifiers and Different Dentin Thicknesses on the Optical Properties of a Darkened Teeth with Limited Sound Tissue Reduction.","authors":"Camila Sobral Sampaio, Pablo J Atria, Lisette Aguilera, Hugo Bravo Darrouy, João L B Abreu, Alvaro Ferrando, Ronaldo Hirata","doi":"10.11607/prd.7348","DOIUrl":"https://doi.org/10.11607/prd.7348","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate color masking and relative translucency parameter (RTP) of increasing dentin thicknesses from different resin composites, with or without opacifiers, on a veneer dental preparation and resin disks.</p><p><strong>Material and methods: </strong>Artificial darkened lateral incisors with 1mm-thick veneers preparations were used to evaluate color masking of different resinous materials, with or without opacifiers: IPS Empress Direct (ED) with or without ED Opaque; and Essentia (ES) with or without ES Masking Liner. For the RTP test; disc-shaped specimens were performed and evaluated with a spectrophotometer (VITA Easyshade) against black and C4 backgrounds. Color differences were calculated using the CIEDE2000 formula (ΔE00).</p><p><strong>Results: </strong>The dentin layer thickness presented no influence on the ΔE00 (P>.05) of the ED group with opacifier; without opacifier, 0.3mm dentin thickness presented higher ΔE00 than 0.8mm layer (P=0.000). For ES group, with and without opacifier, there was a significant decrease in ΔE00 with the increase of dentin thickness (P<.05). All ED groups presented lower ΔE00 than the ES groups (P<.05). All groups showed perceptible color differences, but some ED groups showed acceptable values. For RTP comparisons, a decrease in the ΔE00 was observed with the increase of dentin thickness (P<.05). ED groups with opacifier presented significant lower ΔE00 than ES groups (P<.05). It was observed a significant decrease in ΔE00 for all groups with an opacifier (P<.05).</p><p><strong>Conclusions: </strong>ED combinations with 0.3mm with opacifier and 0.6mm or higher without opacifier were sufficient to mask a C4 background, while ES combinations could not acceptably mask the substrate, according to the acceptability threshold determined. Dentin thicknesses significantly increase at the same pattern as ΔE00 decreases. A black background promoted increased ΔE00 values than a C4 background.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial Intelligence Chatbots in Patient Communication: Current Possibilities.","authors":"Massimo Di Battista, Jeremy Kernitsky, Serge Dibart","doi":"10.11607/prd.6925","DOIUrl":"10.11607/prd.6925","url":null,"abstract":"<p><p>ChatGPT, an artificial intelligence (AI) chatbot, can generate text prompts based on user input. This study investigated the possibility of utilizing this tool to generate adequate and relevant patient educational and management documents in the context of dental implant surgery. A total of 27 periodontists were surveyed on the accuracy and usefulness of AI-generated documents comprising informational handouts for patients on surgical risks and postoperative instruction sheets for dental implant placement in either smokers or patients with diabetes. These periodontists were also asked in a blinded fashion about their preferences between the generic implant placement consent form currently used at Boston University and two AI-generated consent forms, one generic and one tailored to patients with diabetes. A vast majority of participants found that the information in the AI-generated forms was accurate and useful, and they would feel comfortable using them with their own patients. The AI-generated generic consent form performed at least as well as the humanwritten one, while the personalized AI-generated consent form for patients with diabetes performed significantly better (P < .001). Within the limitations of this study, ChatGPT was able to independently generate accurate and useful informational and management documents for patients.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"731-738"},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41224496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autonomous Dental Implant Robotic System Utilization for Implant Placement and Transcrestal Sinus Elevation Using Osseodensification: A Case Report.","authors":"Mingxu Sun, Chongxia Yue, Sandra Stuhr, Xiaojie Fu, Hom-Lay Wang","doi":"10.11607/prd.6832","DOIUrl":"10.11607/prd.6832","url":null,"abstract":"<p><p>Robotic systems have revolutionized various industries, and dentistry is no exception. Recently, due to the robust advancements in artificial intelligence and technology, there has been a significant evolution of dental robotic systems, ranging from surgeon-controlled and robot-assisted operations to more autonomous processes. The present clinical case report describes a 1-year follow-up of the successful use of an autonomous dental implant robot system with an osseodensification protocol for implant osteotomy preparation, maxillary sinus elevation, and simultaneous implant placement at the maxillary second premolar site. A prefabricated provisional prosthesis was delivered immediately after implant placement, with final prosthesis delivery at 3 months. The findings from this report demonstrate the integration and clinical augmentation of more autonomous protocols in the field of implant dentistry using dental robots.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"697-707"},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41224497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}