ORAL HEALTH EVIDENCE-BASED PRACTICE PROGRAM
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Title Placement of A Diatoric May Help Retain Anterior Acrylic Denture Teeth
Clinical Question Does placing a diatoric in anterior acrylic denture teeth retain the denture teeth more successfully compared to no diatoric placement?
Clinical Bottom Line There is some evidence supporting the placement of a diatoric in anterior denture teeth.
Best Evidence (you may view more info by clicking on the PubMed ID link)
PubMed ID Author / Year Patient Group Study type
(level of evidence)
#1) 20362768Meng/201030 Mandibular lateral incisor denture teethLaboratory study
Key resultsPlacement of a diatoric results in higher bond strength.
#2) 21070426Fletcher-Stark/2011160 mandibular incisor denture teethLaboratory study
Key resultsSome study teeth with diatorics yielded higher shear bond strength, while others did not.
#3) 9830071 Barpal/1998120 identical denture teethLaboratory study
Key resultsDenture teeth failed with or without diatoric placement.
Evidence Search Denture Diatoric
Comments on
The Evidence
The validity of this search was extremely low. The focus of each of these articles was not limited to retention due to diatoric placement, therefore the results were mixed with compounding factors such as bonding agent or resin used to retain the teeth.
Applicability The literature indicates that diatoric placement was of less importance in retaining denture teeth than the type of resin used when repairing denture teeth.
Specialty/Discipline (Prosthodontics)
Keywords Diatoric, Removable Denture
ID# 2325
Date of submission: 08/07/2012spacer
E-mail fortmann@uthscsa.edu
Author Christine Fortmann
Co-author(s)
Co-author(s) e-mail
Faculty mentor/Co-author Stephen J. Haney, DDS
Faculty mentor/Co-author e-mail haneys2@uthscsa.edu
Basic Science Rationale
(Mechanisms that may account for and/or explain the clinical question, i.e. is the answer to the clinical question consistent with basic biological, physical and/or behavioral science principles, laws and research?)
post a rationale
by Christine Fortmann (San Antonio, TX) on 09/17/2012
Mechanical retention, such as diatoric placement, is the primary means for securing resin teeth to chemically activated denture base materials. In addition to the mechanical bond, a chemical bond also secures the denture teeth. Most denture teeth are of poly methyl methacrylate composition, which is similar to the resin of denture bases. The heat-activated denture base and acrylic teeth form a chemical bond via cross-links between methyl methacrylate monomer. Cervical portions of acrylic teeth are often processed with reduced cross-linking to facilitate the chemical bond to the denture base resin. Anusavice, K. J. (2003). Phillips’ Science of Dental Materials, 11th Edition. St. Louis, Missouri: Elsevier Science.
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