Dental Implants Clinical Trial
Official title:
Association of Implant Position and Crown Contour With Esthetics and Tissue Health in Anterior Single Tooth Replacement: a Prospective Study
Emergence profile and crown contour of implant supported rehabilitation, which is influenced by implant position, is associated with peri-implant health and esthetic outcomes. However, there is no study prospectively explore the association between implant position, emergence profile/crown contour, and dental implant outcomes. Thus, the present study aims to (1) assess the multivariate association between local factors and peri-implant soft-tissue health, inflammation, and microbiome; and (2) to identify patterns/clusters of implant characteristics significantly associated with health or inflammation.
Status | Recruiting |
Enrollment | 122 |
Est. completion date | September 30, 2025 |
Est. primary completion date | September 30, 2025 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: Patients with a single implant-supported restoration in anterior jaws (premolars to premolars), with adjacent natural teeth, with pre-surgery CBCT and intra-oral scans, and willing to comply with research appointments/schedule. Exclusion Criteria: - Pregnancy or intention to become pregnant at any point during the study duration; - With any systematic diseases/conditions that are contradictions to dental implant treatment; - Inability or unwillingness of individual to give written informed consent. - Inability of follow-up according to the protocol. |
Country | Name | City | State |
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China | Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University | Shanghai | Shanghai |
Lead Sponsor | Collaborator |
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Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University |
China,
Chan D, Pelekos G, Ho D, Cortellini P, Tonetti MS. The depth of the implant mucosal tunnel modifies the development and resolution of experimental peri-implant mucositis: A case-control study. J Clin Periodontol. 2019 Feb;46(2):248-255. doi: 10.1111/jcpe.13066. Epub 2019 Feb 7. — View Citation
Katafuchi M, Weinstein BF, Leroux BG, Chen YW, Daubert DM. Restoration contour is a risk indicator for peri-implantitis: A cross-sectional radiographic analysis. J Clin Periodontol. 2018 Feb;45(2):225-232. doi: 10.1111/jcpe.12829. Epub 2017 Dec 5. — View Citation
Tonetti MS, Jung RE, Avila-Ortiz G, Blanco J, Cosyn J, Fickl S, Figuero E, Goldstein M, Graziani F, Madianos P, Molina A, Nart J, Salvi GE, Sanz-Martin I, Thoma D, Van Assche N, Vignoletti F. Management of the extraction socket and timing of implant placement: Consensus report and clinical recommendations of group 3 of the XV European Workshop in Periodontology. J Clin Periodontol. 2019 Jun;46 Suppl 21:183-194. doi: 10.1111/jcpe.13131. — View Citation
Yi Y, Koo KT, Schwarz F, Ben Amara H, Heo SJ. Association of prosthetic features and peri-implantitis: A cross-sectional study. J Clin Periodontol. 2020 Mar;47(3):392-403. doi: 10.1111/jcpe.13251. Epub 2020 Jan 21. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes in bleeding on probing | Peri-implant probing will be performed with light (~25 g) force using UNC-15 periodontal probe, at six sites (mesio- buccal, buccal, disto-buccal, mesio-lingual, lingual, disto-lingual) per implant. At each site, presence of bleeding will be recorded. | Changes over six months, 1, 2, and 3 years after final crown insertion. | |
Secondary | Changes in cytokine level in peri-implant crevicular fluid | Peri-implant crevicular fluid will be collected and level of inflammatory cytokines will be analyzed using commercial enzyme-linked immunosorbent assays (ELISAs) kits. | Changes over six months, 1, 2, and 3 years after final crown insertion. | |
Secondary | Changes in composition of microbiome in sub-gingival plaque sample | Sub-gingival plaque sample will be collected. Composition of microbiome in sub-gingival plaque samples will be assessed by 16sRNA technique. | Changes over six months, 1, 2, and 3 years after final crown insertion. | |
Secondary | Marginal bone level change | Marginal bone level change will be measured on periapical radiograph using parallel technique. The uppermost end of bone-to-implant contact will be recorded as marginal bone level. Implant will be used as reference. | Chenges over Six months, 1, 2, and 3 years after final crown insertion. | |
Secondary | Buccal soft tissue level change | Intra-oral scan taken at different follow-up time points will be superimposed. Buccal soft tissue level will be recorded and the change will be measured. | Changes over six months, 1, 2, and 3 years after final crown insertion. | |
Secondary | Papilla height change | Intra-oral scan taken at different follow-up time points will be superimposed. Papilla height will be recorded and the change will be measured. | Changes over six months, 1, 2, and 3 years after final crown insertion. |
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