This single-center cross-sectional observational study evaluated oral health-related quality of life and its relationship with patient- and implant-level characteristics in adults with peri-implantitis. A total of 102 participants with 207 peri-implantitis-affected implants were included. Participants underwent clinical, radiographic, prosthetic, occlusal, periodontal, and peri-implant soft-tissue assessments. Oral health-related quality of life was evaluated using the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). The primary outcome was the total OHIP-14 score. Selected OHIP-14 domains, including functional limitation, physical pain, physical disability, and handicap, were evaluated as exploratory outcomes. The study aimed to determine whether demographic, behavioral, periodontal, prosthetic, occlusal, radiographic, and peri-implant soft-tissue characteristics were associated with patient-reported oral health impact in individuals with peri-implantitis.
Consecutive adult patients presenting to the Department of Periodontology, Faculty of Dentistry, Suleyman Demirel University, between February 2025 and May 2026 were screened for eligibility. Participants were required to have at least one implant-supported restoration in function for at least one year and at least one implant meeting the study definition of peri-implantitis. Clinical, prosthetic, occlusal, periodontal, radiographic, and peri-implant soft-tissue variables were recorded. Peri-implant probing depth, bleeding on probing, suppuration, keratinized mucosa width, soft-tissue phenotype, prosthetic design characteristics, occlusal contacts, and radiographic bone-loss measurements were evaluated. Oral health-related quality of life was assessed using the validated Turkish OHIP-14 questionnaire. The total OHIP-14 score was defined as the primary outcome. Functional limitation, physical pain, physical disability, and handicap domain scores were evaluated as exploratory secondary outcomes. Patient-level analyses and implant-level analyses were performed separately, with implant-level analyses accounting for multiple implants contributed by the same participant.
Study Type
OBSERVATIONAL
Enrollment
102
Suleyman Demirel University Faculty of Dentistry, Department of Periodontology
Merkez, Isparta, Turkey (Türkiye)
Total Oral Health Impact Profile-14 (OHIP-14) Score
Oral health-related quality of life was assessed using the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). Each item was scored from 0 (never) to 4 (very often). Item scores were summed to obtain a total score ranging from 0 to 56, with higher scores indicating a greater negative impact of oral health conditions on quality of life.
Time frame: Total OHIP-14 Score → Day 1
Functional Limitation Domain Score of the OHIP-14
Functional limitation was assessed using the corresponding domain of the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). Higher scores indicate a greater negative impact on oral function. This domain was evaluated as an exploratory secondary outcome.
Time frame: Functional Limitation → Day 1
Physical Pain Domain Score of the OHIP-14
Physical pain was assessed using the corresponding domain of the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). Higher scores indicate a greater negative impact related to oral pain or discomfort. This domain was evaluated as an exploratory secondary outcome.
Time frame: Physical Pain → Day 1
Physical Disability Domain Score of the OHIP-14
Physical disability was assessed using the corresponding domain of the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). Higher scores indicate a greater negative impact on daily physical activities related to oral health. This domain was evaluated as an exploratory secondary outcome.
Time frame: Physical Disability → Day 1
Handicap Domain Score of the OHIP-14
Handicap was assessed using the corresponding domain of the validated Turkish version of the 14-item Oral Health Impact Profile (OHIP-14). Higher scores indicate a greater overall negative impact of oral health on daily life. This domain was evaluated as an exploratory secondary outcome.
Time frame: Handicap → Day 1
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