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Open AccessArticle

Supportive Implant Therapy (SIT): A Prospective 10-Year Study of Patient Compliance Rates and Impacting Factors

Northern Hessia Implant Center, D-34369 Hofgeismar, Germany
Department of Operative Dentistry and Periodontology, Faculty of Medicine, Medical Center, University of Freiburg, D-79106 Freiburg, Germany
Institute for Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, 79104 Freiburg, Germany
Author to whom correspondence should be addressed.
J. Clin. Med. 2020, 9(6), 1988;
Received: 17 May 2020 / Revised: 10 June 2020 / Accepted: 21 June 2020 / Published: 25 June 2020
(This article belongs to the Section Stomatology)
The main objective of this study is to present patient compliance rates and influential factors for regular attendance in a systematic implant aftercare program (Supportive Implant Therapy; SIT) within a 10-year observation period. From 2005 to 2008, we identified 233 patients with 524 implants and implant-supported restorations at the study center. They had been instructed to attend an SIT program with 3-month recall intervals. A 2019 clinical prospective cohort study on 10-year compliance rates was performed. Data were assessed yearly in regression analyses to identify influential factors. Noncompliance rates increased during the period (4.8%, year 1; 39.7%, year 10). Total noncompliance was observed in four patients (1.7%) with 10 implants. “Age,” “Gender,” “Diabetes”, and “Surgical case complexity” showed no correlation with patient compliance. “Smoking” and “Cardiovascular diseases” significantly influenced patients in one of ten years, while “Number of implants per patient”, “Type of implant-supported prostheses”, and “Pre-existing experience in a prophylaxis program” reached significance after several years. When patients with implant-supported restorations are strongly recommended and frequently remotivated to comply with an SIT program with 3-month recall, an approximately 60% compliance rate after 10 years is achievable. Previous prophylaxis program experience, increased number of implants per patient, and removable implant-supported prostheses may be strong influential factors for increased patient compliance. View Full-Text
Keywords: dental implants; compliance; aftercare; long-term results dental implants; compliance; aftercare; long-term results
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Mitschke, J.; Peikert, S.A.; Vach, K.; Frisch, E. Supportive Implant Therapy (SIT): A Prospective 10-Year Study of Patient Compliance Rates and Impacting Factors. J. Clin. Med. 2020, 9, 1988.

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