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The influence of different fabrication techniques and preparation designs on the marginal adaptation of ceramic veneers : an in vitro comparative study
المؤلفون المشاركون
Najm, Bashir Abd al-Sahib
al-Rawi, Inas I.
المصدر
Journal of Baghdad College of Dentistry
العدد
المجلد 27، العدد 4 (31 ديسمبر/كانون الأول 2015)، ص ص. 8-14، 7ص.
الناشر
تاريخ النشر
2015-12-31
دولة النشر
العراق
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Background : Ceramic veneers represent the treatment of choice in minimally invasive esthetic dentistry; one of the critical factors in their long term success is marginal adaptation.
The aim of the present study is to evaluate the marginal gap of ceramic veneers by using two different fabrication techniques and two different designs of preparation.
Material and methods : A typodont maxillary central incisor used in the preparation from which metal dies were fabricated, which were in turn used to make forty stone dies.
The dies divided into four experimental groups, each group had ten samples: A1: prepared with butt-joint incisal reduction and restored with IPS e.max CAD, A2: prepared with overlapped incisal reduction and restored with IPS e.max CAD.
B1: prepared with butt-joint incisal reduction restored with IPS e.max press.
B2 : prepared with overlapped incisal reduction and restored with IPS e.max press.
The marginal gap was measured with direct view technique using digital microscope at a magnification of 230x.
Measurements were recorded for four surfaces for each sample and the maximum value was taken to represent that sample.
Results: The data were analyzed with two-way ANOVA and independent samples t-tests.
These tests revealed highly significant effects of both the preparation design and the technique of fabrication on the marginal gap (p = 0.00), with CAD / CAM veneers, group A1 recorded the least marginal gap and pressing group, B2 showed the highest gap values.
There was no significant effect of the interaction between the two parameters on the marginal gap.
Conclusion : the CAD/CAM veneers with butt joint incisal reduction produced the most accurate margins while the least favorable combination was the pressable ceramic veneers with overlapped incisal reduction
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Najm, Bashir Abd al-Sahib& al-Rawi, Inas I.. 2015. The influence of different fabrication techniques and preparation designs on the marginal adaptation of ceramic veneers : an in vitro comparative study. Journal of Baghdad College of Dentistry،Vol. 27, no. 4, pp.8-14.
https://search.emarefa.net/detail/BIM-651129
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Najm, Bashir Abd al-Sahib& al-Rawi, Inas I.. The influence of different fabrication techniques and preparation designs on the marginal adaptation of ceramic veneers : an in vitro comparative study. Journal of Baghdad College of Dentistry Vol. 27, no. 4 (Dec. 2015), pp.8-14.
https://search.emarefa.net/detail/BIM-651129
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Najm, Bashir Abd al-Sahib& al-Rawi, Inas I.. The influence of different fabrication techniques and preparation designs on the marginal adaptation of ceramic veneers : an in vitro comparative study. Journal of Baghdad College of Dentistry. 2015. Vol. 27, no. 4, pp.8-14.
https://search.emarefa.net/detail/BIM-651129
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 13-14
رقم السجل
BIM-651129
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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