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At least 289 records · Page 16Linked to original sources
PubMed2005

[Nursing of root canal therapy with nickel titanium mechanical instruments].

PURPOSE: To discuss the related problems of nursing during root canal preparation with nickel titanium mechanical instruments. METHODS: 206 cases were nursed who underwent root canal preparation, after which the dentists and patients were surveyed on their satisfactory extents, in order to assess the effect of nursing. RESULTS: The results of root canal preparation of 206 cases were good without any accidents such as break of instruments, while 100% dentists and 97.58% patients were satisfied with the nursing. CONCLUSION: Proper and skilled nursing could shorten treatment time, enhance patients' compliableness and decrease the unnecessary injuries. Thus it raised the efficiency and therapeutic effect.

Dental Instruments↗
PubMed2006

Conventional root canal therapy of C-shaped mandibular second molar. A case report.

The C-shaped root canal system and treatment implications were first described by Cooke and Cox in 1979. C-shaped canals are most frequently found in mandibular second molars, but they can occur in any mandibular molar, and they have been reported in maxillary molars as well. C-shaped mandibular molars are characterized by a C-shaped groove that connects one or more root canals. This groove can occur anywhere along the root canal system, making it difficult to diagnose and treat. A C-shaped root canal system may appear completely normal at the level of the pulp chamber but can begin to manifest itself in the middle or apical one-third. Furthermore, C-shaped canals are challenging if not impossible to predict radiographically. C-shaped canals in mandibular second molars are found most frequently in the Chinese population, with reports showing up to a 31.5% incidence, as compared to an approximate 7% incidence in the general population. This case report demonstrates an incidence of a C-shaped canal that was unable to be detected radiographically and which contained three separate root canals that communicated in the apical one-third of the root canal system. Canal orifices were located approximately 2 mm below the level of the CEJ, which is in agreement with a recent micro-computed tomography study of C-shaped mandibular molars that found 98% of all C-shaped molars studied had orifices located 1 mm to 3 mm below the CEJ. The CT study also found that all C-shaped canals contained fused roots and confirmed previous findings that the C-shape configuration varies greatly throughout the length of the canal.

Adult↗