Document Details Document Type : Article In Journal  Document Title : INFLUENCE OF THE FERRULE EFFECT AND PREFABRICATED POST TYPE INFLUENCE OF THE FERRULE EFFECT AND PREFABRICATED POST TYPE   Document Language : English  Abstract : Objectives. To investigate the fracture resistance of endodontically treated crowned teeth with ferrule and without ferrule effect preparation incorporating prefabricated posts with different diameters. Also to compare the fracture resistance of these teeth using parapost and carbon fiber postsystems. Methods. Eighty sound extracted human maxillary central incisors were root canal treated, decoronated and restored with two different sizes of ready made post systems (parapost and carbon fi-ber post systems). Ferrule effect preparation was made in forty teeth and the other forty teeth were left without ferrule preparation. Teeth were restored by composite build up and covered by crowns. Load was applied at an angle of 1350 to the long axis of the teeth and failure load for each tooth was recorded. Data were statistically analyzed using one way analysis of varience (ANOV A) and Scheffe multiple comparison test (p<0.05). Results. For each post system. statistical analysis showed significant difference between mean failure load of teeth with ferrule and without ferrule effect preparation. Also for teeth with fern!le effect. there was significant difference .between the type of post. Ther.e was no difference between smaller or medium sized diameter posts for both systems investigated. Conclusions. Teeth with ferrule effect preparation restored with carbon fiber posts had higher fracture resistance than those restored with paraposts. However. for teeth without ferrule preparation. there was on significant difference between parapost and carbon fiber post  ISSN : 0  Journal Name : Egyptian Dental Journal  Volume : 49  Issue Number : 3  Publishing Year : 2003 AH 2003 AD  Article Type : Article  Added Date : Monday, December 10, 2007  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email محمد عوض Awad, Mohamed Investigator Doctorate mawad@kau.edu.sa عبد الحميد مغربي Maghrabi, Abdulhameed Researcher Doctorate   رجب سيف Seif, Ragab Researcher Doctorate   Files File Name Type Description  INFLUENCE OF THE FERRULE EFFECT AND PREFABRICATED POST TYPE ON THE FRACTURE RESISTANCE OF ENDODONTICALLY TREATED CROWNED TEETH.pdf pdf   Back To Researches Page