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

PubMed ID	Author / Year	Patient Group	Study type (level of evidence)
20362768	Meng/2010	30 Mandibular lateral incisor denture teeth	Laboratory study
Key results	Placement of a diatoric results in higher bond strength.
21070426	Fletcher-Stark/2011	160 mandibular incisor denture teeth	Laboratory study
Key results	Some study teeth with diatorics yielded higher shear bond strength, while others did not.
9830071	Barpal/1998	120 identical denture teeth	Laboratory study
Key results	Denture 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

(Prosthodontics)

Keywords

Diatoric, Removable Denture

ID#

2325

Date of submission

08/07/2012

E-mail

fortmann@uthscsa.edu

Author

Christine Fortmann

Co-author(s)

Co-author(s) e-mail

Faculty mentor

Stephan J. Haney, DDS

Faculty mentor 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?)

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.

Comments and Evidence-Based Updates on the CAT
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs)

None available