Micro-CT evaluation of two different root canal filling techniques

作者：Castagnola R.^*; Marigo L.; Pecci R.; Bedini R.; Cordaro M.; Coppola E. Liborio; Lajolo C.

来源：European Review for Medical and Pharmacological Sciences, 2018, 22(15): 4778-4783.

• Mlcro-CT
• Gutta-percha
• Canal obturations

OBJECTIVE: The aim of this study was to compare the frequency and volume of voids in root canals obturated with two different filling techniques using micro-computed tomography (micro-CT).
MATERIALS AND METHODS: Forty single-rooted permanent teeth were selected and decoronated. The roots were instrumented with WaveOne (Dentsply Maillefer, Ballaigues, Switzerland) to a large size until working length and irrigated with 5.25% sodium hypochlorite and 17% EDTA. Then, the samples were filled using a single-cone (n = 20) or the GuttaCore technique (n = 20). The presence and volume (mm(3)) of voids (internal, external, and combined) was calculated in the coronal, medium, and apical thirds using micro-CT (SkyScan 1072; SkyScan, Kartuizersweg, Belgium). Statistical analyses were performed using the chi(2)-test and Kruskal-Wallis tests (p<0.05).
RESULTS: The frequency and total volume of voids in the middle third and the external voids in the corona third were statistically significant (p<0.05). Within the same group, both techniques (single-cone and Guttacore) showed statistically significant differences in external and internal voids (p<0.05).
CONCLUSIONS: The GuttaCore technique showed better results in the corona! and medium thirds than the single-cone technique. Our results showed that the single-cone and GuttaCore techniques were comparable in the apical third (p>0.05).

• 出版日期2018-8