Overdenture mandibular retida por implante unitário: desfechos clínicos, radriográficos e reportados pelo paciente após 5 anos de acompanhamento
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2020-01-09
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Universidade Federal de Goiás
Resumo
Objective: To assess clinical, radiographic, and patient-reported outcomes of
edentulous individuals rehabilitated with single-implant mandibular overdenture
(SIMO) a 5-year follow-up period. Methods: A prospective clinical study was
performed including edentulous individuals who received new conventional
complete dentures and then an external hexagon implant (Neodent, Brazil) was
placed in the mandibular midline region followed by the incorporation of a
retention system (ball attachment/O'Ring, Neodent, Brazil). Data collection
occurred at baseline and after 3, 6, 12, 24 and 60 months after implant loading.
Outcomes included were implant stability, peri-implant soft tissue condition,
periimplant marginal bone level, satisfaction with the dentures, and oral health-
related quality of life impacts (OHRQoL). Also, clinical maintenance events
related to the dentures were recorded. Descriptive statistics and Wilcoxon Signed Ranks Test were used for data analysis.
Results: 30 out of 34 eligible participants attended the 5-year follow-up, mea
age 68.1 years (SD = 7.8), 70% women. The overall implant survival rate was
95.3%. After 5 years, the OHRQoL showed a statistically significant difference between all evaluation periods
compared to the baseline. There were no statistically significant differences
regarding satisfaction with the maxillary prosthesis (p = 0.068) compared to the
baseline period. Regarding satisfaction with the mandibular denture, there was a
statistically significant difference between all evaluation periods, except for the
60-month evaluation (p = 0.213). There was an increase implant stability after 60
months and a decrease in periimplant bone level, but within expectations. The
most frequent maintenance event was the O'ring matrix replacement (n = 80),
followed by the repair of the denture base (n = 21). The most frequent intervention
was replacement of the O'ring matrix (n = 80), followed by repair at the base of
the prosthesis (n = 21). Besides, the peri-implant soft tissue condition remained
stable. Conclusion: SIMO is effective in the long-term period considering the
maintenance of the positive effect of the intervention in the patient-reported
outcomes, the high implant survival rate, stable peri-implant condition and the
occurrence of a usual number and type of maintenance events.
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COUTINHO, P. C. Overdenture mandibular retida por implante unitário: desfechos clínicos, radriográficos e reportados pelo paciente após 5 anos de acompanhamento. 2019. 62 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2020.