List of Articles by Author
- Ćatović A, Ahmetović A, Ćatić A, Mehulić K. Comparative Investigation of Dynamic Loading Resistance of Teeth with Prefabricated and Cast Metal Posts and Cores. Acta Stomatol Croat. 2002;36(3):347.
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| Title in English: |
Comparative Investigation of Dynamic Loading Resistance of Teeth with Prefabricated and Cast Metal Posts and Cores |
| Title in Croatian: |
nema |
| Type of Article: |
congress abstract |
| MeSH: |
POST AND CORE TECHNIQUE
DENTAL RESTORATION WEAR |
| Abstract: |
Loss of a part or complete clinical crown of tooth results in functional and aesthetic impairment of dental arch and complete stomatognathic system. Such teeth, as well as endodontically treated teeth, during reconstructive prosthodontic therapy need to be treated with posts and cores. The aim of the investigation was to measure and compare the dynamic loading resistance of endodonticallytreated teeth with cast metal and prefabricated posts and cores, under dynamic loading fatigue of 800N-1000N, with specific regard to variable root preparation width. The investigation included 48 human lower second premolars of similar dimensions, divided in 4 groupsaccording to type of post and core system (each 6mm long) which they received. 1) prefabricated narrow post and core (Maillefer Switzerland, Size 1) 2) prefabricated wide post and core (Maillefer Switzerland, Size 3B) 3) cast metal narrow post and core 4) cast metal wide post and core. Modified Voss & Meiners dynamic loading tests were performed within a field of 800N-1000N in high frequencypulsator. Teeth with prefabricated narrow posts demonstratedthe highest average dynamic loading resistance of 9.050.622 cycles under 800N until fracture, while teeth with cast metal wide posts demonstrated the lowest average dynamic loading resistance of 3.522.611 cycles under 1000N until fracture. Significant influence of root preparation width on dynamic loading resistance for all typesof posts was determined by ANOVA (p<0.05), with narrow posts demonstrating more fracture resistance. Prefabricated posts and cores demonstrate stable dynamic loading resistance and better intraradicular retention than cast metal posts and cores. |
- Ćatović A, Ahmetović A, Komar D, Lazić B, Ulovec Z, Katunarić M. Investigation of the Dynamic Strength of Teeth with Prefabricated Casted Posts and Cores. Acta Stomatol Croat. 2002;36(2):223 -34.
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| Title in English: |
Investigation of the Dynamic Strength of Teeth with Prefabricated Casted Posts and Cores |
| Title in Croatian: |
Istraživanje dinamičke čvrstoće zuba opskrbljenog konfekcijskim i lijevanim nadogradnjama |
| Type of Article: |
original scientific paper |
| MeSH: |
POST AND CORE TECHNIQUE |
| Abstract: |
Partial or complete deficiency of the clinical crown of non-vital teethleads to a certain degree of deficiency of the dental arch, and to a certain extent disturbed functioning of the masticatory system. In such cases it is necessary to construct posts and cores to strengthen the tooth abutment as the base for crowns and bridges.The aim of the investigation was to compare the resistance of nonvitalteeth, fitted with cast metal and prefabricated posts and cores, todynamic loading in a high frequency pulsator, with special attention todifferent widths of root canal preparation.The results of the fractographic analysis show that the greatest resistance to dynamic loading was found in teeth with narrow prefabricated posts and cores, which endured loading of 1000N for an average 7,497,318 cycles, without the occurrence of fracture. Widening of the root canal in the case of preparation of the intraradicular part of the tooth for posts and cores, of more than 3.5 mm, significantly reduced its retention and increased the possibility of root fracture. All fractures occurred in the tooth root, while the posts and cores retained intact. |
- Ahmetović A, Macan D, Rukavina K, Francetić I, Sušić M. [A reference guide to drugs and side effects in the oral cavity]. Acta Stomatol Croat. 1993;27(4):293-8.
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