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Journal of Dental Materials and Techniques، جلد ۲، شماره ۱، صفحات ۲۹-۳۳
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عنوان انگلیسی The Effect of Full Crown Preparation on Normal and Inflamed Pulp Tissue: An Animal Study
چکیده انگلیسی مقاله Introduction: Full crown preparation may have adverse effects on pulp tissue. In this study, the effect of full-crown preparation on intact versus inflamed pulp tissue was studied. Methods: Fifteen healthy mature cats were randomly selected for this study. The study was performed on four canine teeth of each cat. Cats were anesthetized and then radiographs were taken from the canine teeth. Class V cavities were prepared in cat canine teeth. Soft decayed dentin was placed on the floor of cavities and sealed. After 1 month, all of the samples prepared for crown fabrication. Before crown preparation, an impression was taken in a custom tray. During crown preparation, the remnants of carious dentin were removed and undercuts were sealed by glass-ionomer. After preparation, self-cured acrylic temporary crowns were fabricated in a direct procedure and cemented permanently by glass-ionomer. One week later, teeth of the opposite jaw were prepared in a similar procedure. After 2 months, vital perfusion performed and the pulp tissue was histologically examined. Results: There was no significant difference between 4 groups, regarding to histologic status of the pulp. In healthy lower jaw, inflammation was the most frequent but in the other groups, necrosis was most frequent. Also, there was no significant difference between the upper jaw and the lower jaw groups regarding to the frequency of necrosis and inflammation. Conclusion: There is no significant difference between intact and inflamed groups regarding the frequency of necrosis and inflammation
کلیدواژه‌های انگلیسی مقاله Animal study, chronic inflammation, crown preparation
نویسندگان مقاله مریم بیدار | maryam bidar
dental research center, department of endodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

اعظم سادات مدنی | azam sadat madani
dental material research center, department of prosthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

نوشین محتشم | nooshin mohtasham
department of oral and maxillofacial pathology, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

ماندانا vardkar | mandana vardkar
endodontist in private practice, tehran, iran


حمید جعفرزاده | hamid jafarzadeh
dental research center, department of endodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

نشانی اینترنتی http://jdmt.mums.ac.ir/article_160.html
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