TY - JOUR ID - 5176 TI - Cusp deflection, infraction and fracture in endodontically treated teeth filled with three temporary filling materials (in vitro) JO - Journal of Dental Materials and Techniques JA - JDMT LA - en SN - 2322-4150 AU - Eskandarizadeh, Ali AU - Torabi Parizi, Molouk AU - Parirokh, Masoud AU - Taheri, Ali AD - Associate professor, Department of Restorative Dentistry, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran AD - Associate professor, Department of Oral Pathology, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran AD - Professor, Department of Endodontics, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran AD - Assistant professor, Department of Oral Pathology, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran Y1 - 2015 PY - 2015 VL - 4 IS - 4 SP - 173 EP - 175 KW - temporary filling material KW - tooth fracture KW - infraction KW - cusp deflection DO - 10.22038/jdmt.2015.5176 N2 - Aim: the aim of this study was to compare cusp deflection, infraction and fracture in teeth filled with three temporary filling materials. Materials & method: Forty five extracted human premolar teeth were chosen. After root canal therapy and mesio-occluso-distal cavity preparation, samples were randomly divided into three groups , each contained 15 teeth and filled with three temporary filling materials: Cavisol (Golchai-Iran), Coltosol F (Coltene,Swiss) and Coltene (Ariadent,Iran). Teeth were kept in normal saline at room temperature and every day the intercuspal distance was measured under stereomicroscope for 20 days. Infractions as well as fractures were also noted. Data were analyzed in SPSS 17 using Repeated measurement ANOVA test to evaluate the intercuspal distance and expansion of each sample every day. Results: Intercuspal distance increased in all three groups but was significantly more in Coltosol F group. On the days 10 and 16 two teeth filled with Coltosol F had cusp fracture. Conclusion: Temporary filling materials have hygroscopic expansion and cause cusp deflection which may lead to cusp fracture, so it is recommended to use them in short period of time.     UR - https://jdmt.mums.ac.ir/article_5176.html L1 - https://jdmt.mums.ac.ir/article_5176_367c03e40e441c7f1f3140a9c5e26dc7.pdf ER -