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Original Research

Open Access

Clinical Measurement of Maximal Mouth Opening in Children: A Pioneer Method

  • Kumar A1,*,
  • Dutta S2
  • Singh J3
  • Mehta R4
  • Hooda A5
  • Namdev R2

1Department of Pedodontics and Preventive Dentistry, Government Dental College, Rohtak

2Department of Pedodontics, Government Dental College, Rohtak

3Department of Pharmacology, PGIMS Rohtak Government Dental College and Hospital

4Department of Prosthodontics, Government Dental College and Hospital, Patiala

5Department of Oral Anatomy Department of Oral Anatomy , Government Dental College & Hospital, Rohtak

DOI: 10.17796/jcpd.37.2.l17x8227682j5610 Vol.37,Issue 2,March 2013 pp.171-176

Published: 01 March 2013

*Corresponding Author(s): Kumar A E-mail:


Objectives: To determine the maximal mouth opening (MMO) in children aged 3 to 5 years from Indian population and to examine the possible influence of age, gender, height and body weight on MMO. Study Design: Assessment of MMO is accomplished with a modified Vernier Caliper by measuring the distance between the incisal edge of upper and lower incisor during maximal mouth opening upto the painless limit. Participants of the study were healthy children selected among regular students from local schools. Age, gender, height and body weight of each child were also recorded at the same time. Results: The results of the present study revealed that MMO in Indian children were 41.61 mm, 44.9 mm and 46.81 mm for boys and 40.09 mm, 44.22 mm and 46.2 mm for girls at age of 3,4 and 5 years respectively. Further significant associations were noted in between age, height, body weight and MMO. However, no gender difference was observed. Conclusion: A definite relationships exist between MMO, age, height and body weight in Indian children with primary dentition.


Maximal mouth opening, Primary dentition, Vernier caliper

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Kumar A,Dutta S,Singh J,Mehta R,Hooda A,Namdev R. Clinical Measurement of Maximal Mouth Opening in Children: A Pioneer Method. Journal of Clinical Pediatric Dentistry. 2013. 37(2);171-176.


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