Journal of Ecophysiology and Occupational Health

Ramesh Chandra ¹, Ambrish Kaushal ¹, Shailja Singh ¹, Yogesh Upadhyay ², Ram Autar ¹, Shantanu Khatri ¹, Shipra Shukla ¹, Sultana Sarwar Saiyed ¹, Anshul Chandra ³

Affiliations
1 Career Post Graduate Institute of Dental Sciences and Hospital, Lucknow, U.P., IN
2 Chandra dental College, Safedabad, Barabanki, U.P., IN
3 Uttar Pradesh Dental College and Research Centre, U.P., IN

Abstract

Endodontic treatment requires a thorough knowledge of the anatomy of the teeth and their surrounding structures. Root canals may be left untreated during endodontic therapy if dentist fails to identify their presence, particularly in the teeth with anatomic variations or extra ischolar_main canal. A major anatomical variation of the two ischolar_mained mandibular first molar is a tooth with an additional ischolar_main located lingually (the radix entomolaris) buccally (radix paramolaris). The prevalence of these three ischolar_mained mandibular first molars appears to be less than 3% in African population, not to exceed 4.2% in Caucasians. To be less than 5% in Eurasian and Asian populations, and to be higher than 5% (even upto 40%) in populations with Mongolian traits. As far as the access was concerned, entering the ischolar_main canal in RE required a modification of opening in a distolingual direction resulting in a trapezoidal opening cavity. None of the orifices was located midway between the mesial and distal component.

Keywords

Anatomic Variations, Endodontic Treatment, Mandibular First Molar.

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Yogesh Upadhyay ¹, Ramesh Chandra ², Shipra Shukla ², Sultana Sarwar Sayed ²

Affiliations
1 Chandra Hospital and Dental College., Safedabad, Barabanki, U.P., IN
2 Career Post Graduate Institute of Dental Science and Hospital, Lucknow, U.P., IN

Abstract

The objective of this study was to evaluate the intensity of pain suffered by Dental personnel, identify the variables related to the occurrence of musculoskeletal symptoms, and establish possible preventive measures for such disorders. A cross-sectional study was made among students and faculty members from different postgraduate courses of various dental hospitals between March and April 2009. A total of 74 dentists (54 postgraduate students and 20 faculty members) were asked to complete an anonymous questionnaire containing 19 questions. Most of the dentists (79.8%) had experienced some kind of musculoskeletal pain in the last 6 months. On comparing the different locations of pain, the neck was found to be the most commonly affected location (58%of all subjects). A higher frequency of intense pain involving cervical, lumbar, dorsal and wrist area was seen in women (p<0.05). Professionals dedicated exclusively to oral surgery had higher incidence of wrist pain (p<0.05). No statistically significant correlation was found between the workload (hours) and pain in the different anatomical locations (p>0.05). The implementation of preventive measures is necessary, in view of the high incidence of these disorders.

Keywords

Musculoskeletal Disorders, Ergonomics, Preventive Measures, Dentists.

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