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:: Volume 35, Number 1 (winter 2017) ::
J Dent Sch GYEAR__, 35(1): 9-14 Back to browse issues page
Crazing Level after Pin Insertion in Anterior Primary Teeth: A Preliminary In Vitro Study
Ghassem Ansari, Fatemeh Mashhadi Abbas, Beheshteh Malekafzali, Reza Yarmohammadi
Dental Student, School of Dentistry, Shahid Beheshti Medical University, Tehran, Iran , Dr.r.yarmohammadi@gmail.com
Abstract:   (77 Views)

Objectives: This study aimed to investigate dentinal crack rate following parapulpal pin insertion in anterior primary teeth.

Methods: Thirteen sound freshly extracted primary canine teeth were horizontally sectioned 1 mm above the cementoenamel junction (CEJ). All samples were thoroughly inspected to ensure that the teeth had no cracks. The teeth were then mounted in acrylic blocks, and subjected to drilling and insertion of a single parapulpal pin in the prepared hole. The teeth were then sectioned perpendicular to the already prepared surface at 1, 2 and 3 mm depths for further evaluation under a stereomicroscope (×12 and ×25 magnifications).

Results: No crack or crazing was observed in teeth in the control group while one out of 11 teeth in the case group had a crack.

Conclusion: The use of 0.53 mm diameter self-threading pin did not increase the risk of crack formation in dentin of anterior primary teeth prior to composite restoration.

Keywords: Tooth, Deciduous, Dental pins, In Vitro Techniques
Full-Text [PDF 249 kb]   (41 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2017/01/30 | Accepted: 2017/03/12 | Published: 2017/07/3
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Ansari G, Mashhadi Abbas F, Malekafzali B, Yarmohammadi R. Crazing Level after Pin Insertion in Anterior Primary Teeth: A Preliminary In Vitro Study. J Dent Sch. 2017; 35 (1) :9-14
URL: http://jds.sbmu.ac.ir/article-1-1571-en.html
Volume 35, Number 1 (winter 2017) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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