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Research ArticleResearch

Repetitive Coronal Polishing Yields Minimal Enamel Loss

Sandra D. Pence, Doyle A. Chambers, Ian G. van Tets, Randall C. Wolf and David C. Pfeiffer
American Dental Hygienists' Association September 2011, 85 (4) 348-357;
Sandra D. Pence
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Doyle A. Chambers
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Ian G. van Tets
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Randall C. Wolf
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David C. Pfeiffer
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Abstract

Purpose: The American Dental Hygienists' Association recommends selective polishing because of risk of enamel removal and lack of documented therapeutic value. The initial study documenting enamel loss from polishing used methods not acceptable for clinical use, while results from other studies are inconsistent. This study examines the effect of simulated life–time polishing on enamel thickness. Enamel loss from polishing is compared to the enamel thickness just coronal to the cementoenamel junction (CEJ) to relate results to clinical application.

Methods: Eight premolars and 18 molars were polished 150 times with coarse prophy paste, then pre– and post–polishing micrometer measurements were compared. Eight unpolished premolars and 18 unpolished molars were used as control groups. Average enamel thickness from 10 premolars and 10 molars just coronal to the CEJ was chosen to represent minimal enamel thickness, and was calculated using digital radiography. T–tests were used to compare group means.

Results: The mean measurement difference was significantly higher for the premolar treatment group than the control group, but no difference was noted between molar treatment and control groups. Neither treatment group demonstrated significant abrasion when compared to average minimal enamel thickness. Root abrasion was noted on 5 molars.

Conclusion: The results of our study indicate that polishing may remove enamel, but the quantity removed is unlikely to be clinically relevant. Root surface abrasion seen on molars is disturbing, considering stain often occurs on exposed mandibular anterior root surfaces and may cause repeated and prolonged polishing. Further investigation into alternative stain removal methods is recommended.

  • polishing
  • enamel
  • abrasion
  • root
  • premolars
  • molars

Footnotes

  • Sandra D. Pence, MS, RDH, is an associate professor and program director, Dental Hygiene Program. Doyle A. Chambers, DMD, is an adjunct professor and clinical dentist, Dental Hygiene and Dental Assisting Programs. Ian G. van Tets, PhD, is an associate professor, Department of Biological Sciences and WWAMI Biomedical Program. Randall C. Wolf, DDS, Diplomate of the American Board of Periodontology, is retired from private practice and an adjunct professor, Dental Hygiene Program. David C. Pfeiffer, PhD, is a professor, Department of Biological Sciences and WWAMI Biomedical Program. All are at the University of Alaska Anchorage.

  • This study supports the NDHRA priority area, Clinical Dental Hygiene Care: Assess the use of evidence–based treatment recommendations in dental hygiene practice.

  • Copyright © 2011 The American Dental Hygienists’ Association
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American Dental Hygienists Association: 85 (4)
American Dental Hygienists' Association
Vol. 85, Issue 4
Fall 2011
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Repetitive Coronal Polishing Yields Minimal Enamel Loss
Sandra D. Pence, Doyle A. Chambers, Ian G. van Tets, Randall C. Wolf, David C. Pfeiffer
American Dental Hygienists' Association Sep 2011, 85 (4) 348-357;

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Repetitive Coronal Polishing Yields Minimal Enamel Loss
Sandra D. Pence, Doyle A. Chambers, Ian G. van Tets, Randall C. Wolf, David C. Pfeiffer
American Dental Hygienists' Association Sep 2011, 85 (4) 348-357;
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Keywords

  • polishing
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  • abrasion
  • root
  • premolars
  • molars

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