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Uysal BF, Köse T, Gürkan A. Gingival phenotype classification by visual and probe visibility assessments: Relationship with thickness and probe design. J Periodontol 2024. [PMID: 39119887 DOI: 10.1002/jper.24-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/05/2024] [Accepted: 07/17/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND This study investigated the agreement among dentists in classifying gingival phenotype (GP) through periodontal probe visibility (PPV) assessment with various probe types and the visual method. Additionally, the relationship between GP classifications and gingival thickness (GT) was evaluated. METHODS Photographs were taken with standard periodontal probe (SPP), color-coded periodontal probe (CCPP) tips in white, green, and blue, as well as metal phenotype probe (MPP) tips in gray and black. Evaluators (periodontist, periodontics resident, endodontics resident, dental student) assessed the photographs and classified the GPs. GT was measured by trans gingival probing. RESULTS Visual method showed poor to fair agreement to classify GP. The lowest agreement regarding PPV was noted with white-tipped CCPP. The highest agreement in singular PPV was observed with CCPP blue (κ = 0.932), followed by CCPP green (κ = 0.791), MPP black (κ = 0.783), SPP (κ = 0.730), and MPP gray (κ = 0.690). Combined PPV data revealed fair to moderate agreement with CCPP and moderate to substantial agreement with MPP in GP classification. The corresponding GT to different GP classifications based on combined PPV were comparable. The agreement between SPP and CCPP in classifying non-thin phenotypes was 89.8%, while the agreement between SPP and MPP was 75.4%. Based on PPV, no significant GT cutoff value was found to distinguish between thin and non-thin phenotypes. CONCLUSION Determining a precise GT that guarantees the visibility of a given probe can be difficult when evaluating GP. Regardless of the type of probe, the PPV method has a high potential for misclassifying GP, despite having an acceptable agreement. PLAIN LANGUAGE SUMMARY Gingival phenotype (GP) is constituted by thickness of the gums and width of keratinized tissue around teeth. Direct visual evaluation or evaluating a periodontal probe's visibility beneath gums are established techniques to classify gingival phenotype. This study investigated how dentists classify GP using visual assessments and different types of periodontal probes, while also exploring the relationship between GP classifications and gingival thickness. Results showed varied agreement among dentists in classifying GP, with lower agreement observed when using certain types of probes, notably the white-tipped phenotype probe. The highest agreement was found with the blue phenotype probe. Data from periodontal probe visibility assessments indicated fair to moderate agreement with certain probes, suggesting some inconsistency in classification methods. Interestingly, GP classification with visual assessments or probes did not correlate with gingival thickness, which may highlight the importance of considering both factors in clinical practice. These findings underline the need for attention when relying solely on visual assessments or specific probe types for accurate GP classification.
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Affiliation(s)
- Burak Fatih Uysal
- School of Dentistry, Department of Periodontology, Ege University, Izmir, Türkiye
| | - Timur Köse
- School of Medicine, Department of Biostatistics and Medical Informatics, Ege University, Izmir, Türkiye
| | - Ali Gürkan
- School of Dentistry, Department of Periodontology, Ege University, Izmir, Türkiye
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Rungtanakiat P, Thitaphanich N, Janda M, Strauss FJ, Arksornnukit M, Mattheos N. Association of Peri-Implant Mucosa Dimensions With Emergence Profile Angles of the Implant Prosthesis. Clin Exp Dent Res 2024; 10:e939. [PMID: 39039934 PMCID: PMC11263758 DOI: 10.1002/cre2.939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 07/02/2024] [Accepted: 07/11/2024] [Indexed: 07/24/2024] Open
Abstract
OBJECTIVES The primary aim of this cross-sectional study was to investigate the association between prosthesis design and peri-implant mucosa dimensions and morphology. The secondary aim was to investigate associations between mucosal dimensions and the presence of mucositis. MATERIALS AND METHODS Forty-seven patients with 103 posterior bone level implants underwent clinical and radiographic examination, including cone beam computer tomography and intraoral optical scanning. Three-dimensional models for each implant and peri-implant mucosa were constructed. Vertical mucosa height (TH), horizontal mucosa width at implant platform (TW), and 1.5 mm coronal of the platform (TW1.5), as well as mucosal emergence angle (MEA), deep angle (DA), and total contour angle (TA) were measured at six sites for each implant. RESULTS There was a consistent correlation between peri-implant mucosa width and height (β = 0.217, p < 0.001), with the width consistently surpassing height by a factor of 1.4-2.1. All three angles (MEA, DA, TA) were negatively associated with mucosa height (p < 0.001), while DA was negatively associated with mucosa width (TW1.5) (p < 0.001, β = -0.02, 95% CI: -0.03, -0.01). There was a significant negative association between bleeding on probing (BoP) and mucosa width at platform (OR 0.903, 95% CI: 0.818-0.997, p = 0.043) and 1.5 coronal (OR 0.877, 95% CI: 0.778-0.989, p = 0.033). Implants with less than half sites positive for BoP (0-2/6) had significantly higher mucosa height (OR 3.51, 95% CI: 1.72-7.14, p = 0.001). CONCLUSIONS Prosthesis design can influence the dimensions of the peri-implant mucosa, with wider emergence profile angles associated with reduced peri-implant mucosa height. In particular, a wider deep angle is associated with reduced mucosa width in posterior sites. Reduced peri-implant mucosa height and width are associated with more signs of inflammation. TRIAL REGISTRATION Registered in Thai Clinical Trials Registry: http://www.thaiclinicaltrials.org/show/TCTR20220204002.
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Affiliation(s)
- Piboon Rungtanakiat
- Department of Prosthodontics, Faculty of DentistryChulalongkorn UniversityBangkokThailand
| | - Natchaya Thitaphanich
- Department of Prosthodontics, Faculty of DentistryChulalongkorn UniversityBangkokThailand
| | - Martin Janda
- Department of Prosthodontics, Faculty of OdontologyMalmoe UniversityMalmöSweden
| | - Franz Josef Strauss
- Clinic of Reconstructive Dentistry, Center of Dental MedicineUniversity of ZurichZurichSwitzerland
- Faculty of DentistryUniversidad Finis TerraeSantiagoChile
| | - Mansuang Arksornnukit
- Department of Prosthodontics, Faculty of DentistryChulalongkorn UniversityBangkokThailand
| | - Nikos Mattheos
- Department of Oral and Maxillofacial Surgery, Faculty of DentistryChulalongkorn UniversityBangkokThailand
- Department of Dental MedicineKarolinska InstituteStockholmSweden
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Rodrigues DM, Gluckman H, Pontes CC, Januário AL, Petersen RL, de Moraes JR, Barboza EP. Relationship between soft tissue dimensions and tomographic radial root position classification system for immediate implant installation. Odontology 2024; 112:988-1000. [PMID: 38324124 DOI: 10.1007/s10266-023-00897-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024]
Abstract
The aim of this study was to evaluate the relationship between soft tissue dimensions and radial root position (RRP) classification for immediate implant placement on maxillary anterior teeth. Maxillary anterior teeth (n = 420) were analyzed in the radial plane of cone beam computed tomography (CBCT) scans. Each tooth was classified according to its RRP: class I, (IA, IB); class II (IIA, IIB) class III; class IV, and class V. Soft tissue thickness at different landmarks, supracrestal soft tissue height, and crestal bone thickness were measured in CBCT. Keratinized tissue width was clinically measured. Gingival phenotype (thick or thin) was evaluated by transparency of the periodontal probe and at the landmark 2 mm from the gingival margin in CBCT. Class I tooth position accounted for 31.7%, class II for 45%, class III for 13.3%, class IV for 0.5%, and class V for 9.5%. The gingival phenotype was associated with RRP (χ2 test, p < 0.05). Soft tissue dimensions were significantly different over RRP classes (ANOVA and Tukey tests, p < 0.05). Types IA and IIA presented both thick soft and hard tissues. When planning immediate implants in the anterior maxilla, soft tissue dimensions evaluation should be incorporated into RRP classification to increase the accuracy and predictability of treatment outcomes.
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Affiliation(s)
- Diogo Moreira Rodrigues
- Department of Periodontology, National Institute of Dental Sciences (INCO 25), Niterói, Rio de Janeiro, Brazil.
| | - Howard Gluckman
- Private Practice, Cape Town, South Africa
- Implant and Aesthetic Academy, Cape Town, South Africa
- Department of Periodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
- Department of Oral Medicine and Periodontology, University of Western Cape School of Dentistry, Cape Town, South Africa
| | - Carla Cruvinel Pontes
- Mouth-Body Research Institute and The Implant and Esthetic Academy, Cape Town, South Africa
| | | | | | - José Rodrigo de Moraes
- Department of Statistics, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Eliane Porto Barboza
- Department of Dental Clinics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
- Lake Erie College of Osteopathic Medicine (LECOM) School of Dental Medicine, Lakewood Ranch, Florida, USA
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Blasi G, Abrahamian L, Blasi A. The distally anchored connective tissue graft platform for papilla enhancement: A case report. Clin Adv Periodontics 2024. [PMID: 38853678 DOI: 10.1002/cap.10299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND As the need for using dental implants to replace single missing teeth grows, so does the demand for greater esthetic results. However, achieving complete interproximal papillae fill in single-tooth implant restorations remains a challenge. The distally anchored connective tissue platform is a novel soft tissue augmentation technique that consists of harvesting an autogenous connective tissue graft from the palate, folding it, and positioning it at the level of the distal occlusal and buccal surfaces with the help of a distal sling suture to the adjacent distal tooth. METHODS This case report describes how a maxillary central incisor with compromised hard and soft tissues were replaced using a comprehensive treatment plan. RESULTS The clinical outcomes showed stable mucosal margin levels and complete papillae fill. The patient expressed satisfaction with the achieved results. CONCLUSIONS The distally anchored connective tissue graft platform performed at the time of implant placement emerges as a viable and effective soft tissue augmentation technique that yields highly esthetic results. KEY POINTS Why is this case new information? To the best of our knowledge, this is the first case report in the literature using the distally anchored connective tissue platform. What are the keys to successful management of this case? Adequate diagnosis and decision-making, resulting in a treatment plan focused on reconstructing both soft and hard tissues in a single-tooth implant within the esthetic area, yield favorable clinical, radiological, and patient-reported outcomes. What are the primary limitations to success in this case? The primary limitation of this study is its reliance on a single case report.
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Affiliation(s)
- Gonzalo Blasi
- Department of Periodontology, School of Dentistry, International University of Catalonia, Barcelona, Spain
- Division of Periodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, Baltimore School of Dentistry, Baltimore, Maryland, USA
| | - Lory Abrahamian
- Department of Periodontology, School of Dentistry, International University of Catalonia, Barcelona, Spain
| | - Alvaro Blasi
- Department of Restorative Dentistry, School of Dentistry, International University of Catalonia, Barcelona, Spain
- Department of Restorative Sciences, Dental College of Georgia at Augusta University, Augusta, Georgia, USA
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Hosseini M, Worsaae N, Gotfredsen K. SURVIVAL RATE OF IMPLANT-SUPPORTED, SINGLE-TOOTH RESTORATIONS BASED ON ZIRCONIA OR METAL ABUTMENT IN PATIENTS WITH TOOTH AGENESIS: A 5-YEARS PROSPECTIVE CLINICAL STUDY. J Evid Based Dent Pract 2024; 24:101970. [PMID: 38821661 DOI: 10.1016/j.jebdp.2024.101970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/22/2023] [Accepted: 01/13/2024] [Indexed: 06/02/2024]
Abstract
OBJECTIVES The primary aim was to investigate survival rate of zirconia versus metal abutments, and the secondary aim was clinical outcomes of all-ceramic versus metal-ceramic crowns on single-tooth implants. METHODS Patients with tooth-agenesis participated to previously published prospective clinical study with 3-year follow-up were recalled after 5 years. Biological variables included survival and success rate of implants, marginal bone level, modified Plaque and Sulcus Bleeding Index and biological complications. Technical variables included restoration survival rate, marginal adaptation and technical complications. The aesthetic outcome of crowns and peri-implant mucosa in addition to patient-reported outcome were recorded. Descriptive analysis, linear mixed model for quantitative data, or generalized linear mixed model for ordinal categorical data were applied; significance was set to 0.05. RESULTS Fifty-three patients (mean age: 32.4 years), with 89 implants participated to the 5-years examination. The implants supported 50 zirconia abutments with 50 all-ceramic (AC) crown and 39 metal abutments with 29 metal-ceramic (MC) and 10 AC crowns. The Implant and restoration survival rate was 100% and 96%, respectively. No clinically relevant biological difference between implants supporting metal or zirconia abutments was registered. The technical complications were veneering fracture of AC-crowns (n = 3), crown loosening of MC-crowns (n = 4) and one abutment screw loosening (MC-crown on metal abutment). MC-crowns had significantly better marginal adaptation than AC-crowns (p = .01). AC-crowns had significantly better color and morphology than MC-crowns (p = .01). CONCLUSIONS Zirconia-based single-tooth restorations are reliable alternative materials to metal-based restorations with favorable biological and aesthetic outcome, and few technical complications.
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Affiliation(s)
- Mandana Hosseini
- Section of Oral Rehabilitation, Department of Odontology, Faculty of Health Science, University of Copenhagen, Copenhagen N-2200, Denmark.
| | - Nils Worsaae
- Department of Oral and Maxillofacial Surgery, University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Klaus Gotfredsen
- Section of Oral Rehabilitation, Department of Odontology, Faculty of Health Science, University of Copenhagen, Copenhagen N-2200, Denmark
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Araujo MG, de Souza DFN, Souza LDPSS, Matarazzo F. Characteristics of healthy peri-implant tissues. Br Dent J 2024; 236:759-763. [PMID: 38789752 DOI: 10.1038/s41415-024-7396-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/26/2024]
Abstract
This article forms part of the themed issue on dental implants, with the general dentist being the main intended reader and with particular relevance to primary care dental professionals. It aims to describe the various characteristics of the implant in health, address contemporary developments in implant dentistry and offer some novel insights on the prevention of peri-implant diseases. A healthy implant exhibits specific histological, clinical and radiographic characteristics. Understanding such aspects leads to proper diagnosis and measures to maintain tissue integrity and prevent the development and progression of peri-implant diseases. Moreover, internationally and widely accepted definitions and recommendations based on expert consensus have been put forward to guide day-to-day clinical practice. This information should provide general practitioners with the means necessary to achieve the best possible outcome for their patients.
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Affiliation(s)
| | | | | | - Flavia Matarazzo
- Department of Dentistry, State University of Maringá, Maringá, Paraná, Brazil
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Eeckhout C, Seyssens L, Glibert M, Keppens L, Nollet B, Lambert M, Cosyn J. A Randomized Controlled Trial Comparing Collagen Matrix to Hemostatic Gelatin Sponge as Socket Seal in Alveolar Ridge Preservation. J Clin Med 2024; 13:2293. [PMID: 38673566 PMCID: PMC11051156 DOI: 10.3390/jcm13082293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
(1) Objectives: This study aimed to compare a collagen matrix to a hemostatic gelatin sponge as a socket seal in alveolar ridge preservation (ARP). (2) Methods: Systemically healthy patients planned for ARP at two sites with more than 50% of the buccal bone wall remaining after tooth extraction were eligible for inclusion. ARP involved socket grafting using collagen-enriched deproteinized bovine bone mineral. Sites were then randomly assigned to the test group (collagen matrix) or the control group (hemostatic gelatin sponge). The primary outcome was soft tissue thickness in the center of the site at 4 months, analyzed on cone-beam computed tomography. Secondary outcomes included the buccal and lingual soft tissue heights, horizontal bone loss, buccal soft tissue profile changes, wound dimensions, and Socket Wound Healing Score (SWHS). (3) Results: In total, 18 patients (12 females, 6 males) with a mean age of 57.3 years (SD 11.1) were included. Four months after ARP, the soft tissue thickness in the center of the site amounted to 2.48 mm (SD 0.70) in the test group and 1.81 mm (SD 0.69) in the control group. The difference of 0.67 mm (95% CI: 0.20-1.14) in favor of the collagen matrix was statistically significant (p < 0.009). The buccal soft tissue height was also statistically significantly higher for the collagen matrix (0.72 mm; 95% CI: 0.06-1.38; p = 0.034). A trend favoring the collagen matrix was found for the lingual soft tissue height (p = 0.066). No significant differences between the groups in terms of horizontal bone loss, buccal soft tissue profile changes, wound dimensions, and the SWHS were found. (4) Conclusions: The absence of significant differences in hard tissue outcomes suggests that both the collagen matrix and hemostatic gelatin sponge effectively sealed the extraction socket and supported bone preservation. However, the collagen matrix better maintained soft tissue dimensions. The clinical relevance of this finding with respect to the necessity for adjunctive soft tissue augmentation at the time of implant placement is yet to be studied.
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Affiliation(s)
- Célien Eeckhout
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
| | - Lorenz Seyssens
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
| | - Maarten Glibert
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
| | - Laurens Keppens
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
| | - Baptist Nollet
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
| | - Martijn Lambert
- Department of Equal Lifelong Oral Health for All (ELOHA), Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium;
| | - Jan Cosyn
- Department of Periodontology and Oral Implantology, Oral Health Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, B-9000 Ghent, Belgium; (L.S.); (M.G.); (L.K.); (B.N.); (J.C.)
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Couso-Queiruga E, Raabe C, Belser UC, Buser D, Avila-Ortiz G, Rodrigues DM, Chappuis V. Non-invasive assessment of peri-implant mucosal thickness: A cross-sectional study. J Periodontol 2023; 94:1315-1323. [PMID: 37332251 DOI: 10.1002/jper.23-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND This study aimed to evaluate the reliability and reproducibility of different non-invasive methods for the assessment of peri-implant mucosal thickness. METHODS Subjects with two adjacent dental implants in the central maxillary region were included in this study. Three different methods to assess facial mucosal thickness (FMT) were compared: digital file superimposition using Digital Imaging and Communication in Medicine (DICOM) and stereolithography (STL) files of the arch of interest (DICOM-STL), DICOM files alone, and non-ionizing ultrasound (US). Inter-rater reliability agreements between different assessment methods were analyzed using inter-class correlation coefficients (ICCs). RESULTS A total of 50 subjects with 100 bone-level implants constituted the study population. Assessment of FMT using STL and DICOM files demonstrated excellent inter-rater reliability agreement. Mean ICC values of 0.97 and 0.95 were observed in the DICOM-STL and DICOM groups, respectively. Comparison between the DICOM-STL and US revealed good agreement, with an ICC of 0.82 (95% CI: 0.74 to 0.88) and a mean difference of -0.13 ± 0.50 mm (-1.13 to 0.86). Comparison between DICOM files alone versus US showed good agreement, with an ICC of 0.81 (95% CI: 0.73 to 0.89) and a mean difference of -0.23 ± 0.46 mm (-1.12 to 0.67). Comparison between DICOM-STL and DICOM files revealed excellent agreement, with an ICC of 0.94 (95% CI: 0.91 to 0.96) and a mean difference of 0.1 ± 0.29 mm (LOA -0.47 to 0.46). CONCLUSIONS Quantification of peri-implant mucosal thickness via analysis of DICOM-STL files, DICOM files, or US assessment are comparably reliable and reproducible methods.
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Affiliation(s)
- Emilio Couso-Queiruga
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Clemens Raabe
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Urs C Belser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Division of Fixed Prosthodontics and Occlusion, School of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Daniel Buser
- School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Gustavo Avila-Ortiz
- Private Practice, Atelier Dental Madrid, Madrid, Spain
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, Massachusetts, USA
| | - Diogo Moreira Rodrigues
- Department of Periodontology, National Institute of Dental Sciences (INCO 25), Niterói, Rio de Janeiro, Brazil
| | - Vivianne Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Leblebicioglu B, Tatakis DN. Complications following alveolar ridge augmentation procedures. Periodontol 2000 2023; 93:221-235. [PMID: 37489632 DOI: 10.1111/prd.12509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/15/2023] [Accepted: 06/18/2023] [Indexed: 07/26/2023]
Abstract
Oral rehabilitation through implant supported dental restorations often requires a ridge augmentation procedure (RAP) prior to implant fixture placement since tooth extraction/loss results in alveolar ridge deficiencies. Although RAP-related surgical techniques and biomaterials have been in practice for several decades, outcomes are not always predictable. Post-surgical complications experienced during the early or late wound healing phases may jeopardize the targeted ideal ridge dimensions, required for implant fixture placement, and may have other consequences, such as negatively impacting the patient's quality of life. This review describes reported post-surgical complications following RAP under the following subtitles: complications by tissue type, complications in function and aesthetics, complications by healing time, complications by biomaterial type, and complications by surgical protocol modalities. Specifically, RAP performed by using particulate bone graft substitutes and related complications are explored. Modalities developed to prevent/manage these complications are also discussed.
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Affiliation(s)
- Binnaz Leblebicioglu
- Division of Periodontology, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Dimitris N Tatakis
- Division of Periodontology, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
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10
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Laleman I, Lambert F, Gahlert M, Bacevic M, Woelfler H, Roehling S. The effect of different abutment materials on peri-implant tissues-A systematic review and meta-analysis. Clin Oral Implants Res 2023; 34 Suppl 26:125-142. [PMID: 37750527 DOI: 10.1111/clr.14159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 09/27/2023]
Abstract
OBJECTIVES In patients with dental implants, what is the effect of transmucosal components made of materials other than titanium (alloys) compared to titanium (alloys) on the surrounding peri-implant tissues after at least 1 year? MATERIALS AND METHODS This systematic review included eligible randomized controlled trials identified through an electronic search (Medline, Embase and Web of Science) comparing alternative abutment materials versus titanium (alloy) abutments with a minimum follow-up of 1 year and including at least 10 patients/group. Primary outcomes were peri-implant marginal bone level (MBL) and probing depth (PD), these were evaluated based on meta-analyses. Abutment survival, biological and technical complications and aesthetic outcomes were the secondary outcomes. The risk of bias was assessed with the RoB2-tool. This review is registered in PROSPERO with the number (CRD42022376487). RESULTS From 5129 titles, 580 abstracts were selected, and 111 full-text articles were screened. Finally, 12 articles could be included. Concerning the primary outcomes (MBL and PD), no differences could be seen between titanium abutment and zirconia or alumina abutments, not after 1 year (MBL: zirconia: MD = -0.24, 95% CI: -0.65 to 0.16, alumina: MD = -0.06, 95% CI: -0.29 to 0.17) (PD: zirconia: MD = -0.06, 95% CI: -0.41 to 0.30, alumina: MD = -0.29, 95% CI: -0.96 to 0.38), nor after 5 years. Additionally, no differences were found concerning the biological complications and aesthetic outcomes. The most important technical finding was abutment fracture in the ceramic group and chipping of the veneering material. CONCLUSIONS Biologically, titanium and zirconia abutments seem to function equally up to 5 years after placement.
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Affiliation(s)
- I Laleman
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), Faculty of Medicine, University of Liège, Liège, Belgium
| | - F Lambert
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), Faculty of Medicine, University of Liège, Liège, Belgium
| | - M Gahlert
- Private Dental Clinic PD Dr. Gahlert & PD Dr. Roehling, Munich, Germany
- Sigmund Freud Private University, Vienna, Austria
- Clinic for Oral and Cranio-Maxillofacial Surgery, Hightech Research Center, University Hospital Basel, University of Basel, Basel, Switzerland
| | - M Bacevic
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
- Centre for Oral Clinical Research, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - H Woelfler
- Professor for Demography, University of Bamberg, Bamberg, Germany
| | - S Roehling
- Private Dental Clinic PD Dr. Gahlert & PD Dr. Roehling, Munich, Germany
- Clinic for Oral and Cranio-Maxillofacial Surgery, Hightech Research Center, University Hospital Basel, University of Basel, Basel, Switzerland
- Clinic for Oral and Cranio-Maxillofacial Surgery, Kantonsspital Aarau, Aarau, Switzerland
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Ramanauskaite A, Obreja K, Müller KM, Schliephake C, Wieland J, Begic A, Dahmer I, Parvini P, Schwarz F. Three-dimensional changes of a porcine collagen matrix and free gingival grafts for soft tissue augmentation to increase the width of keratinized tissue around dental implants: a randomized controlled clinical study. Int J Implant Dent 2023; 9:13. [PMID: 37326686 PMCID: PMC10275822 DOI: 10.1186/s40729-023-00482-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/29/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Emerging clinical data points to the relevance of the presence of keratinized tissue (KT). Although apically positioned flap/vestibuloplasty along with free gingival graft (FGG) is considered as a standard intervention for augmenting KT, substitute materials appear to be a viable treatment alternative. So far, there is a lack of data investigating the dimensional changes at implant sites treated with soft-tissue substitutes or FGG. AIM The present study aimed at comparing three-dimensional changes of a porcine derived collagen matrix (CM) and FGG for increasing KT at dental implants over a 6-month follow-up period. MATERIALS AND METHODS The study enrolled 32 patients exhibiting deficient KT width (i.e., < 2 mm) at the vestibular aspect who underwent soft tissue augmentation using either CM (15 patients/23 implants) or FGG (17 patients/31 implants). The primary outcome was defined as tissue thickness change (mm) at treated implant sites between 1- (S0), 3- (S1), and 6-months (S2). Secondary outcomes considered changes of KT width over a 6-month follow-up period, surgical treatment time, and patient-reported outcomes. RESULTS Dimensional analyses from S0 to S1 and from S0 to S2 revealed a mean decrease in tissue thickness of - 0.14 ± 0.27 mm and - 0.04 ± 0.40 mm in the CM group, and - 0.08 ± 0.29 mm and - 0.13 ± 0.23 mm in the FGG group, with no significant differences noted between the groups (3 months: p = 0.542, 6 months: p = 0.659). Likewise, a comparable tissue thickness decrease was observed from S1 to S2 in both groups (CM: - 0.03 ± 0.22 mm, FGG: - 0.06 ± 0.14 mm; p = 0.467). The FGG group exhibited a significantly greater KT gain after 1, 3 and 6 months compared to the CM group (1 month: CM: 3.66 ± 1.67 mm, FGG: 5.90 ± 1.58 mm; p = 0.002; 3 months: CM: 2.22 ± 1.44; FGG: 4.91 ± 1.55; p = 0.0457; 6 months: CM: 1.45 ± 1.13 mm, FGG: 4.52 ± 1.40 mm; p < 0.1). Surgery time (CM: 23.33 ± 7.04 min.; FGG: 39.25 ± 10.64 min.; p = 0.001) and postoperative intake of analgesics were significantly lower in the CM group (CM: 1.2 ± 1.08 tablets; FGG: 5.64 ± 6.39 tablets; p = 0.001). CONCLUSIONS CM and FGG were associated with comparable three-dimensional thickness changes between 1 and 6 months. While a wider KT band could be established with FGG, the use of CM significantly reduced surgical time and patients´ intake of analgesics.
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Affiliation(s)
- Ausra Ramanauskaite
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Karina Obreja
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Katharina Melissa Müller
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Carla Schliephake
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Johanna Wieland
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Amira Begic
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Iulia Dahmer
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Puria Parvini
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
| | - Frank Schwarz
- Department of Oral Surgery and Implantology, Johann Wolfgang Goethe-University, Carolinum, Frankfurt an Main, Germany
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12
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Chen D, Li Z, Li Z, Sun Y, Liu Q, Yang J, Song J, Cai H, Feng Z, Chen Z, Huang B. Transcriptome analysis of human peri-implant soft tissue and periodontal gingiva: a paired design study. Clin Oral Investig 2023:10.1007/s00784-023-05017-y. [PMID: 37060358 DOI: 10.1007/s00784-023-05017-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 04/02/2023] [Indexed: 04/16/2023]
Abstract
OBJECTIVES Limited information is available about the biological characterization of peri-implant soft tissue at the transcriptional level. The aim of this study was to investigate the effect of dental implant on the soft tissue in vivo by using paired samples and compare the differences between peri-implant soft tissue and periodontal gingiva at the transcriptional level. METHODS Paired peri-implant soft tissue and periodontal gingiva tissue from 6 patients were obtained, and the pooled RNAs were analyzed by deep sequencing. Venn diagram was used to further screen out differentially expressed genes in every pair of samples. Annotation and enrichment analysis was performed. Further verification was done by quantitative real-time PCR. RESULTS Totally 3549 differentially expressed genes (DEGs) were found between peri-implant and periodontal groups. The Venn diagram further identified 185 DEGs in every pair of samples, of which the enrichment analysis identified significant enrichment for cellular component was associated with external side of plasma membrane, for molecular function was protein binding, for biological process was immune system process, and for KEGG pathway was cytokine-cytokine receptor interaction. Among the DEGs, CST1, SPP1, AQP9, and SFRP2 were verified to be upregulated in peri-implant soft tissue. CONCLUSIONS Peri-implant soft tissue showed altered expressions of several genes related to the cell-ECM interaction compared to periodontal gingiva. CLINICAL RELEVANCE Compared to periodontal gingiva, altered cell-ECM interactions in peri-implant may contribute to the susceptibility of peri-implant diseases. At the transcriptional level, periodontal gingiva is generally considered the appropriate control for peri-implantitis, except regarding the cell-ECM interactions.
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Affiliation(s)
- Danying Chen
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Zhixin Li
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Zhipeng Li
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Yue Sun
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Qifan Liu
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Jieting Yang
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Jiaying Song
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Huaxiong Cai
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Zhicai Feng
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Zhuofan Chen
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China.
| | - Baoxin Huang
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China.
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13
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Rodrigues DM, Chambrone L, Montez C, Luz DP, Barboza EP. Current landmarks for gingival thickness evaluation in maxillary anterior teeth: a systematic review. Clin Oral Investig 2023; 27:1363-1389. [PMID: 36786957 DOI: 10.1007/s00784-023-04898-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023]
Abstract
OBJECTIVES To identify and report the current landmarks used for measuring gingival thickness (GT) in healthy maxillary anterior teeth. MATERIAL AND METHODS The protocol of this Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) 2020-compliant systematic review was registered in PROSPERO. A literature search was conducted to identify articles that met the eligibility criteria published up to 2022. The methods of assessing gingival thickness and the landmarks adopted on the studies were described. Primary outcomes were identified, and the frequency of reporting in the selected articles was calculated. Additionally, risk-of-bias assessments were performed for individual articles. RESULTS Fifty-eight articles (34 with low risk of bias and 24 with medium risk of bias) were selected. A total of 3638 individuals had their gingival thickness measured. Thirty-nine different landmarks were adopted in the studies. Fifty-six articles with 22 landmarks were included in the meta-analysis. A higher heterogeneity was found between the studies (GT ranged from 0.48 to 2.59 mm, mean GT 1.074; 95% CI: 1.024-1.104). The 3 most used landmarks were 2 mm from gingival margin (10 studies, mean GT 1.170 mm, 95% CI: 1.085-1.254), bone crest (9 studies, mean GT 1.01 mm; 95% CI: 0.937-1.083), and cemento-enamel junction (7 studies, mean GT 1.172 mm; 95% CI: 1.105, 1.239). CONCLUSIONS Within the limits of this study, a large heterogeneity in GT was found, and there was no consensus on the ideal landmark for GT measurement. CLINICAL RELEVANCE The landmark 2 mm from gingival margin, located at attached gingiva, can be used for GT measurement by clinical and image-based devices. This is an important step for a quantitative instead of a qualitative evaluation of phenotypes.
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Affiliation(s)
| | - Leandro Chambrone
- Evidence-Based Hub, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz-Cooperativa de Ensino Superior, Caparica, Portugal.,Department of Periodontics, The University of Pennsylvania, Philadelphia, USA.,Unit of Basic Oral Investigation (UIBO), Universidad El Bosque, Bogota, Colombia
| | - Caroline Montez
- Graduate Program, Fluminense Federal University School of Dentistry, Niterói, Brazil
| | - Diogo Pereira Luz
- Post Graduate Program, Fluminense Federal University School of Dentistry, Niterói, Brazil
| | - Eliane Porto Barboza
- Department of Dental Clinic, Fluminense Federal University School of Dentistry, Rua Mario Santos Braga, 28 - Centro, Niterói, Rio de Janeiro, CEP, 24020-140, Brazil.
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14
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Thoma DS, Gasser TJW, Hämmerle CHF, Strauss FJ, Jung RE. Soft tissue augmentation with a volume-stable collagen matrix or an autogenous connective tissue graft at implant sites: Five-year results of a randomized controlled trial post implant loading. J Periodontol 2023; 94:230-243. [PMID: 35904229 DOI: 10.1002/jper.22-0226] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/10/2022] [Accepted: 07/11/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Interventions to augment the mucosal thickness around dental implants are indicated to optimize esthetics and maintain peri-implant health. However, there is a lack of clinical data on the long-term performance of soft tissue substitutes, such as volume-stable collagen matrix (VCMX), compared to autogenous grafts, such as subepithelial connective tissue grafts (SCTGs). This randomized controlled trial aimed to assess 5-year data on clinical and radiographic outcomes at implant sites previously augmented with VCMX or SCTG. METHODS Twenty patients were randomly assigned for soft tissue augmentation with VCMX or SCTG at single implant sites. Following abutment connection, final restorations were inserted (baseline; BL) and patients were reexamined up to 5 years (FU-5). Measurements included clinical data, marginal bone levels, mucosal thickness, and ridge contour changes. Nonparametric tests and estimates were applied for the statistical analysis. RESULTS The median buccal mucosal thickness increased by 0.3 mm (Q1: -0.8; Q3: 1.0) in the VCMX group (P = 0.656) and 0.3 mm (Q1: 0.0; Q3: 1.0) in the SCTG group (P = 0.188) between BL and FU-5 (intergroup P = 0.752), while the ridge contour decreased by a median of -0.3 mm (-0.9; -0.1) (P = 0.078) for VCMX and -0.3 mm (-0.4; -0.2) (P = 0.039) for SCTG (intergroup P = 0.817). Peri-implant health was maintained in both groups with stable clinical and radiographic outcomes and without significant differences between the treatments. CONCLUSION Despite the limited power and considerable dropout rate in the present study, soft tissue augmentation at implant sites with either VCMX or SCTG resulted in similar stable peri-implant tissues, favorable esthetics, and clinically negligible contour changes at 5 years post loading.
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Affiliation(s)
- Daniel S Thoma
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Thomas J W Gasser
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Christoph H F Hämmerle
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Franz J Strauss
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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15
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Monje A, González-Martín O, Ávila-Ortiz G. Impact of peri-implant soft tissue characteristics on health and esthetics. J ESTHET RESTOR DENT 2023; 35:183-196. [PMID: 36650691 DOI: 10.1111/jerd.13003] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To review the impact of key peri-implant soft tissue characteristics on health and esthetics. MAIN CONSIDERATIONS The keratinized mucosa width (KMW), the mucosal thickness (MT), and the supracrestal tissue height (STH) are essential components of the peri-implant soft tissue phenotype. An inadequate KMW (<2 mm) has been associated with local discomfort upon oral hygiene performance and increased risk for the onset of peri-implant diseases. A minimum buccal MT (≥2 mm) is generally required to prevent esthetic issues related to the effect of transmucosal prosthetic elements on the color of the mucosa and can also contribute to long-term mucosal stability. STH is directly related to marginal bone remodeling patterns during the early healing process that follows the connection of transmucosal prosthetic components. Short STH, generally defined as <3 mm, has been consistently associated with marginal bone loss resulting from the physiologic establishment of the mucosal seal. Insufficient STH may also derive into the fabrication of unfavorable transmucosal prosthetic contours, which frequently results in unpleasing esthetic outcomes and predisposes to submarginal biofilm accumulation. Peri-implant soft tissue dehiscences (PISTDs) are a type of peri-implant deformity that are associated with esthetic issues and often occur in sites presenting KMW, MT, and/or STH deficiencies. PISTDs should be correctly diagnosed and treated accordingly, usually by means of multidisciplinary therapy. CONCLUSION Understanding the impact of different dimensional and morphologic features of the peri-implant mucosa on health and esthetic outcomes is fundamental to make appropriate clinical decisions in the context of tooth replacement therapy with implant-supported prostheses.
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Affiliation(s)
- Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain.,Department of Periodontology, University of Bern, Bern, Switzerland
| | - Oscar González-Martín
- Private Practice, Atelier Dental Madrid, Madrid, Spain.,Department of Periodontology, Complutense University of Madrid, Madrid, Spain
| | - Gustavo Ávila-Ortiz
- Private Practice, Atelier Dental Madrid, Madrid, Spain.,Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, USA.,Department of Periodontics, University of Iowa College of Dentistry, Iowa City, Iowa, USA
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16
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Bienz SP, Pirc M, Papageorgiou SN, Jung RE, Thoma DS. The influence of thin as compared to thick peri-implant soft tissues on aesthetic outcomes: A systematic review and meta-analysis. Clin Oral Implants Res 2022; 33 Suppl 23:56-71. [PMID: 35763024 PMCID: PMC9543651 DOI: 10.1111/clr.13789] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/07/2021] [Accepted: 05/19/2021] [Indexed: 01/10/2023]
Abstract
Objectives In systematically healthy patients with an implant‐supported fixed restoration (P), what is the influence of thin (E) as compared to thick (C) peri‐implant soft tissues on aesthetic outcomes (O)? Methods Following an a priori protocol, a literature search of six databases was conducted up to August 2020 to identify prospective/retrospective clinical studies on healthy patients with an implant‐supported fixed reconstruction. Measurement of the buccal soft tissue thickness and an aesthetic outcome was a prerequisite, and sites presenting with a buccal soft tissue thickness of <2 mm or shimmering of a periodontal probe were categorized as a thin phenotype. After study selection, data extraction, and risk of bias assessment, random‐effects meta‐analysis of Mean Differences (MD) or Odds Ratios (OR) with their corresponding 95% Confidence Intervals (CI) were conducted, followed by sensitivity analyses and assessment of the quality of evidence. Results Thirty‐four unique studies reporting on 1508 patients with 1606 sites were included (9 randomized controlled trials, one controlled trial, 10 prospective cohort studies, 8 cross‐sectional studies, and 6 retrospective cohort studies). The mean difference of the pink aesthetic score (PES) after the follow‐up was not significantly different between thin (<2.0 mm) or thick soft tissues (≥2.0 mm) or phenotypes (12 studies; MD = 0.15; [95% CI = −0.24, 0.53]; p = .46). PES changes during the follow‐up, however, were significantly in favour of thick soft tissues (≥2.0 mm) or phenotypes (p = .05). An increased mean mucosal thickness was associated with an increased papilla index (5 studies; MD = 0.5; [95% CI = 0.1, 0.3]; p = .002) and an increase in papilla presence (5 studies; OR = 1.6; [95% CI = 1.0, 2.3]; p = .03). Thin soft tissues were associated with more recession, −0.62 mm (4 studies; [95% CI = −1.06, −0.18]; p = .006). Patient‐reported outcome measures (patient satisfaction) were in favour of thick soft tissues −2.33 (6 studies; [95% CI = −4.70, 0.04]; p = .05). However, the quality of evidence was very low in all instances due to the inclusion of non‐randomized studies, high risk of bias and residual confounding. Conclusion Within the limitations of the present study (weak study designs and various soft tissue measurements or time‐points), it can be concluded that increased soft tissue thickness at implant sites was associated with more favourable aesthetic outcomes.
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Affiliation(s)
- Stefan P Bienz
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Miha Pirc
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Spyridon N Papageorgiou
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Daniel S Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.,Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
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17
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Sanz M, Heitz-Mayfield L. Consensus report of DGI/SEPA/Osteology Workshop. Clin Oral Implants Res 2022; 33 Suppl 23:3-7. [PMID: 35763019 PMCID: PMC9541816 DOI: 10.1111/clr.13950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/01/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Mariano Sanz
- ETEP (Etiology and Research of Periodontal and Peri-implant Diseases) Research Group, University Complutense of Madrid, Madrid, Spain
| | - Lisa Heitz-Mayfield
- International Research Collaborative - Oral Health and Equity, School of Anatomy, Physiology and Human Biology, The University of Western Australia, Crawley, WA, Australia
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18
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Jung RE, Becker K, Bienz SP, Dahlin C, Donos N, Hammächer C, Iglhaut G, Liñares A, Ortiz-Vigón A, Sanchez N, Sanz-Sánchez I, Thoma DS, Valles C, Weng D, Nart J. Effect of peri-implant mucosal thickness on esthetic outcomes and the efficacy of soft tissue augmentation procedures: Consensus report of group 2 of the SEPA/DGI/OF workshop. Clin Oral Implants Res 2022; 33 Suppl 23:100-108. [PMID: 35763020 PMCID: PMC9543632 DOI: 10.1111/clr.13955] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aim of this study was to comprehensively assess the literature in terms of the effect of peri-implant mucosal thickness on esthetic outcomes and the efficacy of soft tissue augmentation procedures to increase the mucosal thickness with autogenous grafts or soft tissue substitutes. MATERIAL AND METHODS Two systematic reviews (SR) were performed prior to the consensus meeting to assess the following questions. Review 1, focused question: In systemically healthy patients with an implant-supported fixed prosthesis, what is the influence of thin as compared to thick peri-implant mucosa on esthetic outcomes? Review 2, focused question 1: In systemically healthy humans with at least one dental implant (immediate or staged implant), what is the efficacy of connective tissue graft (CTG), as compared to absence of a soft tissue grafting procedure, in terms of gain in peri-implant soft tissue thickness (STT) reported by randomized controlled clinical trials (RCTs) or controlled clinical trials (CCTs)? Review 2, focused question 2: In systemically healthy humans with at least one dental implant (immediate or staged implant), what is the efficacy of CTG, as compared to soft tissue substitutes, in terms of gain in peri-implant STT reported by RCTs or CCTs? The outcomes of the two SRs, the consensus statements, the clinical implications, and the research recommendations were discussed and subsequently approved at the consensus meeting during the group and plenary sessions. CONCLUSIONS There was a tendency of superior esthetic outcomes in the presence of a thick mucosa. The connective tissue graft remains the standard of care in terms of increasing mucosa thickness.
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Affiliation(s)
- Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Kathrin Becker
- Department of Orthodontics, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Stefan P Bienz
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Christer Dahlin
- Department of Biomaterials, Institute for Surgical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Nikos Donos
- Centre for Oral Clinical Research, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | | | - Gerhard Iglhaut
- Department of Oral and Craniomaxillofacial Surgery, Translational Implantology, Center for Dental Medicine, University Medical Center of Freiburg, Freiburg, Germany.,Private Center of Oral Surgery, Memmingen, Germany
| | - Antonio Liñares
- Periodontology Unit, Faculty of Odontology, University of Santiago de Compostela & Medical-Surgical Dentistry Research Group, Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | | | - Nerea Sanchez
- Section of Graduate Periodontology, University Complutense, Madrid, Spain.,ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, School of Dentistry, University Complutense, Madrid, Spain
| | - Ignacio Sanz-Sánchez
- Section of Graduate Periodontology, University Complutense, Madrid, Spain.,ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, School of Dentistry, University Complutense, Madrid, Spain
| | - Daniel S Thoma
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Cristina Valles
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Dietmar Weng
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - José Nart
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
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