TY  - JOUR
TT  - Effects of different cement usage and different post lengths to the fracture resistance of crown resorted teeth
AU  - Kılınç, Halil İbrahim
AU  - Aslan, Tuğrul
AU  - Kılıç, Kerem
AU  - Er, Özgür
PY  - 2016
DA  - April
DO  - 10.15311/1441.272595
JF  - Selcuk Dental Journal
JO  - Selcuk Dent J
PB  - Selcuk University
WT  - DergiPark
SN  - 2148-7529
SP  - 20
EP  - 26
VL  - 3
IS  - 1
KW  - Baskı dayanımı
KW  - diş kırıkları
KW  - post ve kor tekniği
N2  - Background: The aim of this study is to evaluate the effect of post lengths and different cementation materials on the fracture resistance of teeth which restored with post-cores and crowns. Methods: Forty mandibular premolars with similar dimensions were decoronated. After the root canal treatment, the teeth were embedded in acrylic blocks. Specimens were fistly divided into 2 groups. 10-mm- and 5-mm-long circular post spaces were prepared with using #0.5 and #2 coded manufacturer’s drills, respectively. At the post (D.T. Light-Post) cementation stage, 10 specimens in each post group were cemented with a selfadhesive resin cement (Rely X). The other 10 specimens were cemented with self-etch cement (Clearfill Esthetic Cement) (n=10). All specimens were restored with composite cores and prepared at a height of 6 mm (including 1 mm ferrule) and a convergence angle of approximately 5° in total. Then, all teeth were restored with full metal crowns and cemented with a glass ionomer cement. After thermocycling, all specimens were subjected to fracture resistance testing (0,5 mm/min). Data were analyzed using the two-way ANOVA test (α = 0.05). Results: Usage of different type of cement did not effect the fracture resistance of crown-restored (p=0.209), while 10-mm-long post placement provided higher fracture resistance when compared to 5-mm-long post placement (p < .001). Conclusion: Within the limitations of this study, deeply preparation of post place is enhanced fracture resistance of post-core and crown restored teeth whichever cement were used.
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UR  - https://doi.org/10.15311/1441.272595
L1  - https://dergipark.org.tr/en/download/article-file/253620
ER  -