V V Gordan1. 1. College of Dentistry, Department of Operative Dentistry, Health Science Center, University of Florida, PO Box 100415, Gainesville, FL 32610-0415, USA. vgordan@dental.ufl.com
Abstract
OBJECTIVES: The purpose of this clinical study was to evaluate any increase in size of Class V resin based composite restorations that required replacement. Emphasis was placed on measurements of the loss of tooth structure in areas distant from the site of failure. METHODS: 14 Class V restorations scheduled for replacement were recorded with pre-operative impressions and intra-oral photographs. Restorations were then removed and cavity preparations were completed. A second impression and photograph were taken and stone casts were prepared for each impression. The perimeter and area of each restoration and cavity preparation were measured with a video-based imaging system (Dage 725 CCD camera) equipped with a macro lens, at a fixed magnification of x 10-15. The initial measurements of the restoration image were compared to the measurements of the new cavity preparation, in both instances excluding the site of failure. Intra-class correlation coefficient (ICR) and paired t-test were used for statistical analysis. RESULTS: A significant difference between the pre and post-operative measurements for both area (P=0.0125) and perimeter (P=0.003) was found. CONCLUSION: The study showed that replacement of Class V resin based composite restorations resulted in increased size of the cavity preparation in areas distant from the site of failure.
OBJECTIVES: The purpose of this clinical study was to evaluate any increase in size of Class V resin based composite restorations that required replacement. Emphasis was placed on measurements of the loss of tooth structure in areas distant from the site of failure. METHODS: 14 Class V restorations scheduled for replacement were recorded with pre-operative impressions and intra-oral photographs. Restorations were then removed and cavity preparations were completed. A second impression and photograph were taken and stone casts were prepared for each impression. The perimeter and area of each restoration and cavity preparation were measured with a video-based imaging system (Dage 725 CCD camera) equipped with a macro lens, at a fixed magnification of x 10-15. The initial measurements of the restoration image were compared to the measurements of the new cavity preparation, in both instances excluding the site of failure. Intra-class correlation coefficient (ICR) and paired t-test were used for statistical analysis. RESULTS: A significant difference between the pre and post-operative measurements for both area (P=0.0125) and perimeter (P=0.003) was found. CONCLUSION: The study showed that replacement of Class V resin based composite restorations resulted in increased size of the cavity preparation in areas distant from the site of failure.
Authors: Tim J Heaven; Valeria V Gordan; Mark S Litaker; Jeffrey L Fellows; D Brad Rindal; Gregg H Gilbert Journal: J Dent Date: 2015-05-18 Impact factor: 4.379
Authors: Valeria V Gordan; Joseph L Riley; Saulo Geraldeli; D Brad Rindal; Vibeke Qvist; Jeffrey L Fellows; H Paul Kellum; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2012-06 Impact factor: 3.634
Authors: Valeria V Gordan; James D Bader; Cynthia W Garvan; Joshua S Richman; Vibeke Qvist; Jeffrey L Fellows; D Brad Rindal; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2010-02 Impact factor: 3.634
Authors: Valeria V Gordan; Cynthia W Garvan; Joshua S Richman; Jeffrey L Fellows; D Brad Rindal; Vibeke Qvist; Marc W Heft; O Dale Williams; Gregg H Gilbert Journal: Oper Dent Date: 2009 Nov-Dec Impact factor: 2.440
Authors: Valeria V Gordan; Joseph L Riley; D Brad Rindal; Vibeke Qvist; Jeffrey L Fellows; Deborah A Dilbone; Solomon G Brotman; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2015-12 Impact factor: 3.634