The quality of Thermafil obturations with different final apical tapers: a three-dimensional microcomputed tomographic comparative study.
| Autor: | Zogheib C; Department of Endodontics, School of Dentistry Saint-Joseph University, 1104 2020 Beirut, Libanon. zogheibcarla@gmail.com, Naaman A, Medioni E, Bourbouze G, Chirani RA |
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| Jazyk: | angličtina |
| Zdroj: | The journal of contemporary dental practice [J Contemp Dent Pract] 2012 May 01; Vol. 13 (3), pp. 322-6. Date of Electronic Publication: 2012 May 01. |
| DOI: | 10.5005/jp-journals-10024-1145 |
| Abstrakt: | Aim: The aim of this study is to evaluate the influence of final canal taper on the sealing ability of Thermafil by using microcomputed tomography (micro-CT). Materials and Methods: Fifty-four single-rooted teeth were instrumented to apical size 40 taper 4, 6 and 8%. Teeth were divided into three groups. All teeth were filled with Thermafil (Dentsply,Tulsa Dental Products). Using micro-CT, roots were scanned and volume measurements of voids at 1, 3 and 5 mm from the apex were calculated using specialized CT software. Measurements were analyzed statistically with ANOVA followed by Bonferroni multiple comparison correction. Results: Data analysis showed that 0.08 preparations provided better results than 0.06 and 0.04% tapered samples especially at 1 mm from the apex. Mean percentage of voids were significantly higher with Thermafil taper 0.06% (p = 0.05). None of the root canals filled teeth were gap free. Root canal preparations with bigger taper exhibited less voids than smaller tapered preparations. Clinical Significance: In our daily practice, enlarging the apical third (last 3 mm) of root canals to an 8% taper gives a better sealing ability and thus long-term success for our root canal obturations. |
| Databáze: | MEDLINE |
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