ความต้านทานการสึกเหตุวัตถุ 2 ชนิด ของวัสดุบูรณะฟันที่ขึ้นรูปด้วยแคดแคมเมื่อสบกับเคลือบฟัน (TWO-BODY WEAR RESISTANCE OF DENTAL CAD/CAM RESTORATIVE MATERIALS AND OPPOSING ENAMEL )

Authors

  • วีร์ศิริ สกุลรัตนะ โรงพยาบาลภูมิพลอดุลยเดช กรมแพทย์ทหารอากาศ
  • ภาวิณีย์ ปฎิพัทธ์วุฒิกุล ดิดรอน ภาควิชาทันตกรรมทั่วไป คณะทันตแพทยศาสตร์ มหาวิทยาลัยศรีนครินทรวิโรฒ

Keywords:

Wear Resistance, CAD/CAM, Dental Ceramic, Volume Loss

Abstract

              Introduction:  Dental ceramics are known for their excellent chemical and optical properties. The wear of human enamel and of the restorative material is often a vital and esthetical concern when selecting a restorative material for any given clinical restorative treatment. The aim of this study was to determine the two-body wear resistance of dental CAD/CAM restorative materials and the opposing enamel in-vitro.

           Material and Method: Twelve test specimens were fabricated from 6 types of CAD/CAM ceramic, Feldspathic ceramic (Vita MarkII), Zirconia ceramic (Incoris TZi zirconia), Lithium disilicate glass -ceramics (Emax), zirconia-reinforced lithium silicate (Celtra Duo), Hybrid ceramic (Vita Enamic) and zirconium silicate hybrid ceramic (Shofu HC), with a dimension of 2 x 2 x 5 mm for pin specimens. Enamel specimens (n =12) were prepared from the extracted human premolar teeth. Using a pin-on-disc wear tester, wear test between CAD/CAM restorative materials and enamel was performed under a constant load of 20 N, at 100 rpm for 4,000 cycles. Volume loss of enamel and CAD/CAM restorative material specimens was measured with a profilometer. Qualitative characterization of wear patterns of all test materials and enamel specimens were evaluated using scanning electron microscopy.

           Result: The highest volume loss was found on Hybrid ceramic. Zirconia-reinforced lithium silicate, Zirconia ceramic and Lithium disilicate glass-ceramics have significantly less volume loss than Zirconium silicate hybrid ceramic, Hybrid ceramic and Feldspathic ceramic (p < 0.05). The wear on enamel was found lower against zirconia silicate hybrid ceramic, Hybrid ceramic and Feldspathic ceramic, but the results were not significant (p > 0.05).

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References

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Published

2020-03-30

How to Cite

สกุลรัตนะ ว. ., & ปฎิพัทธ์วุฒิกุล ดิดรอน ภ. . (2020). ความต้านทานการสึกเหตุวัตถุ 2 ชนิด ของวัสดุบูรณะฟันที่ขึ้นรูปด้วยแคดแคมเมื่อสบกับเคลือบฟัน (TWO-BODY WEAR RESISTANCE OF DENTAL CAD/CAM RESTORATIVE MATERIALS AND OPPOSING ENAMEL ). Srinakharinwirot University Journal of Sciences and Technology, 11(22, July-December), 186–200. Retrieved from https://ph02.tci-thaijo.org/index.php/swujournal/article/view/240384

Issue

Vol. 11 No. 22, July-December (2019): Srinakharinwirot University (Journal of Science and Technology)

Section

บทความวิจัย

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