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- Title
Dentine removal in the coronal portion of root canals following two preparation techniques.
- Authors
Plotino, G.; Grande, N. M.; Falanga, A.; Di Giuseppe, I. L.; Lamorgese, V.; Somma, F.
- Abstract
Aim To measure the root canal area and the reduction of the mesial and buccal/lingual wall thickness at the level of the coronal interference in mesial roots of mandibular molars after instrumentation with a crown-down or a simultaneous root canal preparation technique. Methodology Twenty mesial roots of first mandibular molars with a moderate root canal curvature were embedded in resin and sectioned horizontally at the level of the coronal interference, using a modification of the Bramante technique. After scanning and processing, the sections were reassembled. One root canal of each root was prepared using ProTaper instruments, while M two instruments were used in the other root canal of the same mesial root. After scanning and processing, the data obtained were analysed for two parameters: changes in root canal area after instrumentation (ΔA) and reduction of the mesial and buccal/lingual wall thickness (ΔT). The data were subjected to Student's t-tests for statistical analysis at a significance level of P < 0.05. Results No statistically significant differences were found between the two groups with respect to the changes in the areas (ΔA) at the level considered ( P = 0.410). No statistically significant differences were noticed between the two groups for dentine thickness (ΔT) of both the mesial wall ( P = 0.077) and the buccal or lingual wall ( P = 0.171). Conclusions There was no difference between the ProTaper and M two groups for the amount of dentine removed.
- Subjects
DENTISTRY; DENTIN; DENTAL pulp cavities; LINGUAL frenum; MOLARS
- Publication
International Endodontic Journal, 2007, Vol 40, Issue 11, p852
- ISSN
0143-2885
- Publication type
Article
- DOI
10.1111/j.1365-2591.2007.01284.x