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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Impact of head and neck radiotherapy on the mechanical behavior of composite resins and adhesive systems: A systematic review

Full text
Author(s):
Madrid Troconis, Cristhian Camilo [1] ; Santos-Silva, Alan Roger [2] ; Brandao, Thais Bianca [3] ; Lopes, Marcio Ajudarte [2] ; de Goes, Mario Fernando [1]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, Dept Restorat Dent, Piracicaba Dent Sch, Dent Mat Area, Limeira Ave 901, BR-13414903 Piracicaba, SP - Brazil
[2] Univ Estadual Campinas, UNICAMP, Dept Oral Diag, Semiol Area, Piracicaba Dent Sch, Piracicaba, SP - Brazil
[3] Univ Sao Paulo, Med Sch, Sao Paulo State Canc Inst ICESP, Dent Oncol Serv, FMUSP, Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Review article
Source: Dental Materials; v. 33, n. 11, p. 1229-1243, NOV 2017.
Web of Science Citations: 1
Abstract

Objective. To analyze the evidence regarding the impact of head and neck radiotherapy (HNRT) on the mechanical behavior of composite resins and adhesive systems. Methods. Searches were conducted on PubMed, Embase, Scopus and ISI Web of Science databases using ``Radiotherapy{''}, `` Composite resins{''} and ``Adhesivesystems{''} as keywords. Selected studies were written in English and assessed the mechanical behavior of composite resins and/or adhesive systems when bonding procedure was conducted before and/or after a maximum radiation dose >= 50 Gy, applied under in vitro or in vivo conditions. Results. In total, 115 studies were found but only 16 were included, from which five evaluated the effect of in vitro HNRT on microhardness, wear resistance, diametral tensile and flexural strength of composite resins, showing no significant negative effect in most of reports. Regarding bond strength of adhesive systems, 11 studies were included from which five reported no meaningful negative effect when bonding procedure was conducted before simulated HNRT. Conversely, five studies showed that bond strength diminished when adhesive procedure was done after in vitro radiation therapy. Only two studies about dental adhesion were conducted after in vivo radiotherapy but the results were not conclusive. Significance. The mechanical behavior of composite resins and adhesive systems seems not to be affected when in vitro HNRT is applied after bonding procedure. However, bond strength of adhesive systems tends to decrease when simulated radiotherapy is used immediately before bonding procedure. Studies assessing dentin bond strength after in-vivo HNRT were limited and controversial. (C) 2017 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/06138-1 - A prospective study of radiation-induced trismus in patients with oral squamous cell carcinoma
Grantee:Ana Carolina Prado Ribeiro e Silva
Support Opportunities: Regular Research Grants
FAPESP's process: 13/18402-8 - Evaluation of the direct effects of radiation on the enamel, dentin and dental pulp of head and neck cancer patients
Grantee:Alan Roger dos Santos Silva
Support Opportunities: Regular Research Grants