A study on the in-vitro wear of the natural tooth structure by opposing zirconia or dental porcelain

Yu Seok Jung, Jae Whang Lee, Yeon Jo Choi, Jin Soo Ahn, Sang-Wan Shin, Jung Bo Huh

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

PURPOSE. This study was conducted to evaluate clinical validity of a zirconia full-coverage crown by comparing zirconia's wear capacity over antagonistic teeth with that of feldspathic dental porcelain. MATERIALS AND METHODS. The subject groups were divided into three groups: the polished feldspathic dental porcelain group (Group 1), the polished zirconia group (Group 2), and the polished zirconia with glazing group (Group 3). Twenty specimens were prepared from each group. Each procedure such as plasticity, condensation, and glazing was conducted according to the manufacturer's manual. A wear test was conducted with 240,000 chewing cycles using a dual-axis chewing simulator. The degree of wear of the antagonistic teeth was calculated by measuring the volume loss using a three-dimensional profiling system and ANSUR 3D software. The statistical significance of the measured degree of wear was tested with a significant level of 5% using one-way ANOVA and the Tukey test. RESULTS. The degrees of wear of the antagonistic teeth were 0.119 ± 0.059 mm3 in Group 1, 0.078 ± 0.063 mm3 in Group 3, and 0.031 ± 0.033 mm3 in Group 2. Statistical significance was found between Group 1 and Groups 2 and between Group 2 and 3, whereas no statistical significance was found between Group 1 and Group 3. CONCLUSION. Despite the limitations of this study on the evaluation of antagonistic teeth wear, the degree of antagonistic tooth wear was less in zirconia than feldspathic dental porcelain, representing that the zirconia may be more beneficial in terms of antagonistic tooth wear.

Original languageEnglish
Pages (from-to)111-115
Number of pages5
JournalJournal of Advanced Prosthodontics
Volume2
Issue number3
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Ceramic
  • Tooth
  • Wear
  • Zirconia

ASJC Scopus subject areas

  • Dentistry (miscellaneous)
  • Oral Surgery

Fingerprint Dive into the research topics of 'A study on the in-vitro wear of the natural tooth structure by opposing zirconia or dental porcelain'. Together they form a unique fingerprint.

  • Cite this