Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years.

Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Research Abstract Details 

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Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Abstract Text:

Takanari Miyamoto,Steven M Morgano,Takashi Kumagai,Judith A Jones,Martha E Nunn,

STATEMENT OF PROBLEM: Limited clinical data exist on the survival of teeth relative to their treatment history. PURPOSE: This study evaluated failure of teeth relative to their treatment history. MATERIAL AND METHODS: Longitudinal data were collected for 3071 teeth from 148 fully compliant patients from 1 private practice in Yamagata, Japan. Follow-up times ranged from 15 to 23 years, with a mean of 19.2 years (SD 2.4). In this study, every tooth and its restoration were evaluated by one of the authors at the time of each maintenance visit. Treatment history of the teeth was categorized at baseline as follows: (1) sound, unrestored tooth (SUT); (2) 1-surface restoration (RT1); (3) 2-surface restoration (RT2); (4) 3-surface restoration (RT3); (5) 4+-surface restoration (RT4); (6) complete crown (CCT); (7) abutment for fixed partial dental prosthesis (AFT); (8) abutment for removable partial dental prosthesis (APDT); and (9) root canal treatment (RCT). Three types of failure modes were evaluated in this study: (1) restorative failure (secondary caries and/or fracture), (2) extraction, and (3) any failure (restorative failure or extraction). Multivariate survival analysis was used to determine the impact of the treatment history on failure (alpha=.05). RESULTS: Teeth with multi-surface restorations experienced the highest incidence of any failure (P<.001). For secondary caries, similar risks were noted for the different treatment histories. For failures resulting in extraction, the only teeth with an increased risk were abutments for removable partial dental prostheses (relative risk=5.5) (P=.008). CONCLUSIONS: The data demonstrated that restored teeth experienced a higher incidence of failure compared with unrestored teeth. Complete crowns and abutments for fixed partial dental prostheses had fewer restorative failures when compared with teeth with complex multisurface restorations. Removable partial denture abutments experienced the highest failure rate.

Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Publishing Authors By Initials

T Miyamoto,SM Morgano,T Kumagai,JA Jones,ME Nunn,

For similar surgical procedures, operative: oral surgical procedures: tooth extraction research abstracts see: surgical procedures, operative: oral surgical procedures: tooth extraction research

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Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: The Journal of prosthetic dentistry

VOLUME: 97

Page Numbers: 150-6

Journal Abbreviation:

ISSN: 0022-3913

DAY: 3

MONTH: Mar

YEAR: 2007

Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Information

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LANGUAGE: eng

NlmUniqueID: 376364

Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years. Keywords Mesh Terms:

KEYWORDS: Tooth Extraction

MESH TERMS: statistics & numerical data

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Grant and Affiliation Information for Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years.

AFFILIATION: Department of General Dentistry, Division of Periodontology, Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA.

Country: United States

AGENCY: United States NIDCR

GRANT: R03DE016924

ACRONYM: DE

MEDLINETA: J Prosthet Dent

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