To investigate the prevalence and risk factors for peri-implant disease in partially edentulous patients rehabilitated with implants supported crown or bridge so as to provide evidence for clinical prevention and control.
The aim of the present study is to identify the prevalence of peri-implant disease in partially edentulous subjects treated with osseointegrated implants, using clinical parameters, as well as to analyse the possible disease association with demographic, behavioural, and biological risk variables.
Study Type
OBSERVATIONAL
Enrollment
350
Stomatological Hospital of Fourth Military Medical University
Xi’an, Shanxi, China
RECRUITINGperi-implant disease
Peri-implant disease includes Peri-implant mucositis and Peri-implantitis.Peri-implant mucositis: BoP/suppuration but no detectable bone loss. Peri-implantitis: BoP/suppuration and bone loss \>2 mm.
Time frame: at the 5 years after prosthetic loading.
Gingival Bleeding on Probing
Gingival bleeding on probing (BOP) using the modified sulcus bleeding index for implants. Scale equals 0 = No bleeding when periodontal probe is passed along the gingival margin;1 = Isolated bleeding spots visible;2 = Blood forms a confluent red line on the gingival margin;3 = Heavy or profuse bleeding.
Time frame: at the first day,6 months 1,3 and 5 years after prosthetic loading.
Pocket depths
PD will be measured from the free gingival margin to the base of the pocket and will be recorded in whole millimeters (mm).
Time frame: at the first day,6 months 1,3 and 5 years after prosthetic loading.
Marginal bone loss
Marginal bone loss will be assessed by periapical radiographs taken with the paralleling technique.
Time frame: at the first day,6 months 1,3 and 5 years after prosthetic loading.
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