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ORIGINAL ARTICLE
Year : 2017  |  Volume : 29  |  Issue : 3  |  Page : 186-190

Study on evaluation of normal range of maximum mouth opening among Indian adults using three finger index: A descriptive study


1 Department of Oral Medicine and Radiology, New Horizon Dental College and Research Institute, Bilaspur, Chhattisgarh, India
2 Department of Plastic Surgery, Burn and Trauma Centre, Bilaspur, Chhattisgarh, India
3 Department of Community Medicine, Chhattisgarh Institute of Medical Sciences, Bilaspur, Chhattisgarh, India

Correspondence Address:
Ravleen Nagi
Department of Oral Medicine and Radiology, New Horizon Dental College and Research Institute, Sakri, Bilaspur, Chhattisgarh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jiaomr.JIAOMR_5_17

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Introduction: Early recognition of decreased or limited mouth opening in many pathological conditions is necessary for prompt diagnosis and to plan the treatment options judiciously. Therefore, it is essential to establish what constitutes normal opening for the population. Aim: This study was designed with an aim to consider the applicability of this method as an index to measure the maximum mouth opening (MMO) among different age groups in an Indian population. Materials and Methods: Total 400 healthy participants were studied in the age range of 17 to 60 years and stratified into four groups according to their age ranges. The maximum interincisal distance and width of three fingers (index, middle, and ring fingers) at the first distal interphalangeal folds of both right and left hand were measured using Vernier caliper. Statistical analysis was done using SPSS version 21 software package. Results: Results suggested that mean value and range of MMO for males was 51.00 mm (33.0–68.0 mm) and for females it was 46.3 mm (39.0–58.0 mm). Mean values of MMO correlated significantly with the width of three fingers of left and right hand as shown by Pearson correlation test. Conclusion: The study suggested that three finger index is a convenient and reliable tool for assessing normal MMO and is a most appropriate method to normal from restricted mouth opening.


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