Thesis
Survival of non-occlusal non-incisal restorations in older adults
University of Iowa
Master of Science (MS), University of Iowa
Autumn 2019
DOI: 10.17077/etd.005182
Abstract
Objectives: This study aimed to investigate the survival of non-occlusal non-incisal restorations as a surrogate for large cervical restorations among older adults.
Methods: In a retrospective cohort analysis using The University of Iowa College of Dentistry and Dental Clinics electronic health records, we included 3,051 restorations among unique patients aged 65+ who received 2+ surface non-occlusal non-incisal restorations placed from 1/2005-12/2011. Restorations were followed until 9/22/2017 or until they were deemed to have failed.
Results: At baseline, the participants’ mean age was 75.07 ± 7.14 years, and 51.72% were females. Most restorations were composites (67.85%), on upper (65.19%) anterior (79.65%) teeth, placed by dental students (75.48%), and with 2 surfaces (78.63%). About one-third (38.81%) of the restorations failed during follow-up, with a median survival time of 6.53 to 7.86 years. The median survival time was 6.53 to 7.86 years. The hazard of failure for males compared to females was 1.16 (p=0.0117); for lower anterior compared to upper ones was 1.26 (p=0.0020); for three and more surfaces including lingual surface compared to two surfaces including lingual surface was 1.36 (p = 0.0003); for three and more surfaces not including lingual surface compared to two surfaces including lingual surface was 1.44 (p = 0.0282); for composite in Geriatric & Special Needs Dentistry (GSND) & Geriatric Mobile Unit (GMU) compared to composite in other clinics was 1.47 (p = 0.0025); for amalgam and glass ionomer in other clinics compared to composite in other clinics was 2.02 (p < 0.0001); for amalgam and glass ionomer in GSND & GMU compared to composite in other clinics was 2.85 (p < 0.0001).
Conclusion: The gender, tooth arch, number of restored surfaces, material, and clinic were all significant factors associated with the survival of these restorations.
Details
- Title: Subtitle
- Survival of non-occlusal non-incisal restorations in older adults
- Creators
- Nailin Shi
- Contributors
- Leonardo Marchini (Advisor)Daniel J. Caplan (Committee Member)Xian Jin Xie (Committee Member) - University of Iowa, BiostatisticsJustine L. Kolker (Committee Member)
- Resource Type
- Thesis
- Degree Awarded
- Master of Science (MS), University of Iowa
- Degree in
- Dental Public Health
- Date degree season
- Autumn 2019
- Publisher
- University of Iowa
- DOI
- 10.17077/etd.005182
- Number of pages
- viii, 62 pages
- Copyright
- Copyright 2019 Nailin Shi
- Language
- English
- Description illustrations
- color illustrations
- Description bibliographic
- Includes bibliographical references (pages 58-62).
- Public Abstract (ETD)
Root caries is a common problem for every older adult. The lasting time of root caries fillings is a health and financial concern for older adults.
Objectives: This study aimed to investigate the survival of root surface fillings among older adults, as well as factors associated with the survival.
Methods: In a retrospective analysis using The University of Iowa, College of Dentistry electronic health records, we included 3,051 restorations among unique patients aged 65+ who received more than two surface root surface fillings placed from 1/2005-12/2011. Fillings were followed until 9/22/2017 or until they were deemed to have failed, whichever was earlier. Filling failure was defined as teeth receiving any replacement fillings, root canal treatment, or tooth extraction.
Results: The median survival time was 6.53 to 7.86 years. The risk of failure for males compared to females was 1.16 (p=0.0117); for lower anteriors compared to upper ones was 1.26 (p=0.0020); for three and more surfaces compared to two surfaces was 1.36 (p = 0.0003) and 1.44 (p = 0.0282); for composite in the geriatric clinic compared to composite in other clinics was 1.47 (p = 0.0025); for amalgam ang glass ionomer in other clinics compared to composite in other clinics was 2.02 (p < 0.0001); for amalgam ang glass ionomer in the geriatric clinic compared to composite in other clinics was 2.85 (p < 0.0001).
Conclusion: Root surface fillings on males and frail patients, on lower teeth, involving more tooth surfaces, and with amalgam and glass ionomer materials had higher risks to fail.
- Academic Unit
- Preventive and Community Dentistry
- Record Identifier
- 9983779599102771
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