Early-predictors of marginal bone loss around morse taper connection implants loaded with single crowns: A prospective longitudinal study
Manuel T. B. Radaelli
Department of Prosthodontics, Meridional Center of Dentistry Studies, Passo Fundo, Brazil
Search for more papers by this authorLeonardo Federizzi
Department of Prosthodontics, Meridional Center of Dentistry Studies, Passo Fundo, Brazil
Search for more papers by this authorGustavo G. Nascimento
Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
Search for more papers by this authorFábio R. M. Leite
Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
Search for more papers by this authorCorresponding Author
Noéli Boscato
Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
Correspondence
Noéli Boscato, Graduate Program in Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457, CEP 96015-560, Pelotas, RS, Brazil.
Emails: [email protected]; [email protected]
Search for more papers by this authorManuel T. B. Radaelli
Department of Prosthodontics, Meridional Center of Dentistry Studies, Passo Fundo, Brazil
Search for more papers by this authorLeonardo Federizzi
Department of Prosthodontics, Meridional Center of Dentistry Studies, Passo Fundo, Brazil
Search for more papers by this authorGustavo G. Nascimento
Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
Search for more papers by this authorFábio R. M. Leite
Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
Search for more papers by this authorCorresponding Author
Noéli Boscato
Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
Correspondence
Noéli Boscato, Graduate Program in Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457, CEP 96015-560, Pelotas, RS, Brazil.
Emails: [email protected]; [email protected]
Search for more papers by this authorAbstract
Background and Objective
Few studies estimated the joint effect of implant design (length and diameter), peri-implant, and occlusal variables on early marginal bone loss. The monitoring of these factors during the first year after implant loading may be effective in preventing early implant failure. This prospective longitudinal study aimed to identify early-predictors of marginal bone loss around morse-tapered connection implants 12 months after implant loading.
Methods
Participants (n = 33) received 109 morse taper implants inserted subcrestally (diameter: 3.5 to 5 mm, length: 6 to 15 mm) loaded with single crowns. Implants were radiographically examined at the implant placement (baseline) and 12 months after prosthetic loading. Implant, peri-implant, and occlusal-related independent variables were analyzed by decision tree analysis. Mixed-effects multilevel analysis was used to estimate adjusted predictive values of marginal bone loss based on the early-predictors identified in decision tree analysis.
Results
Higher marginal bone loss was observed at mesial (mean of 0.87 mm; ranged from 0.5 to 1.19) than at distal sites (mean of 0.73 mm; ranged from 0.4 to 1.12 mm). The predictive model revealed of the largest marginal bone loss in association with cement-retained prostheses, a platform diameter of 3.5 mm, papilla sizes up to 2 mm, keratinized mucosa width inferior to 3 mm, implant lengths above 8.5 mm, inadequate occlusal relations, presence of bleeding on probing and deep peri-implant pocket.
Conclusion
As implant dimensions, peri-implant and occlusal-related factors were associated with early marginal bone loss around morse taper implant, intervention in these factors might prevent early marginal bone loss.
CONFLICT OF INTEREST
There is no conflicting of interest to declare.
Supporting Information
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