Preparation of Cleared Specimens for Pulp Cavity Studies

Seelig, Alexander; Gillis, Robert R.

doi:10.1177/00220345730520053101

Cited by 22 publications

(9 citation statements)

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“…The presence of pulp tissue between the two main canals in the mesial root of mandibular first molars has also been shown by clearing techniques (Seelig & Gillis 1973, Hasselgren & Tronstad 1975, Robertson et al 1980. From these studies it was apparent tbat tbe widest intermediate canals would be negotiable to root canal instruments but much pulp tissue would still remain.…”

Section: Discussionmentioning

confidence: 90%

Three canals in the mesial root of mandibular first permanent molars: a clinical study

Fabra-Campos

1989

Int Endodontic J

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Traditional teaching of the anatomy of root canals in different teeth can lead clinicians into the misguided belief that a predetermined number of root canals is always present in any given tooth. A new understanding of the root canal system has enabled the location of additional canals. Results of the clinical study of 760 first mandibular molars, showed that 20 (2.6 per cent) had three canals in the mesial root. Of these 20 teeth, 13 (65 per cent) had an intermediate canal which joined the mesiobuccal canal in the apical third. In six cases (30 per cent) it joined the mesiolingual canal in the same area. In only one case did the intermediate or third canal retain its individual nature and end in an independent foramen.

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Section: Discussionmentioning

confidence: 90%

Three canals in the mesial root of mandibular first permanent molars: a clinical study

Fabra-Campos

1989

Int Endodontic J

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“…Specimens from the study sample were selected for clearing, using modifications of the techniques previously described (25)(26)(27). These specimens were photographed before and after being rendered transparent.…”

Section: Iviateriai and Methodsmentioning

confidence: 99%

Root form and canal anatomy of mandibular first molars in a southern Chinese population

Walker

1988

Dental Traumatology

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Racial differences in dental crown morphology have long been recognised, but the diverse aspects of root form and canal anatomy of human teeth have not received the same attention. The majority of books on dental anatomy fail to supply detailed information of the features of root and root canal morphology that occur at particularly high frequency in Mongoloid populations. These features have not been systematically documented and the implications that these variations may have upon clinical endodontics have not been fully reported. In this study 100 mandibular first molars extracted from Hong Kong Chinese patients were examined visually and radiographically. For each tooth, the number of roots, root canals, and apical foramina were noted. Fifteen per cent of the mandibular first molars examined were found to be 3‐rooted. Forty‐five per cent of the sample displayed 2 distal canals and 28% of the teeth had 2 separate distal apical foramina. The frequency of the second distal canal is higher than the previously reported findings for non‐Mongoloid groups.

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“…Specimens from the study sample were selected for clearing, using modifications of the techniques previously described (13)(14)(15). These specimens were photographed before and after being rendered transparent.…”

Section: Materiai and Methodsmentioning

confidence: 99%

Root form and canal anatomy of maxillary first premolars in a southern Chinese population

Walker

1987

Dental Traumatology

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Racial differences in dental crown morphology have long been recognized, but the frequency of genetically determined variations in root form and canal anatomy has not been established. Features of root and root canal morphology that occur at particularly high frequency in Mongoloid populations have not been systematically documented, and the implications that such features may have upon clinical endodontics have not been fully reported. In this study 100 maxillary first premolars extracted from Hong Kong Chinese patients were examined visually and radiographically. For each tooth, the number of roots, root canals, and apical foramina were noted. Sixty per cent of the maxillary first premolars examined were found to be single‐rooted, but only 13% were found to have a single canal. The high frequency of single‐rooted teeth with two canals suggests that the single‐rooted condition represents a fusion, occurring in the relatively recent past, of two original roots.

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Preparation of Cleared Specimens for Pulp Cavity Studies

Cited by 22 publications

References 0 publications

Three canals in the mesial root of mandibular first permanent molars: a clinical study

Three canals in the mesial root of mandibular first permanent molars: a clinical study

Root form and canal anatomy of mandibular first molars in a southern Chinese population

Root form and canal anatomy of maxillary first premolars in a southern Chinese population

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