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Journal of Indian Society of Pedodontics and Preventive Dentistry Official publication of Indian Society of Pedodontics and Preventive Dentistry
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 ORIGINAL ARTICLE
Year : 2006  |  Volume : 24  |  Issue : 2  |  Page : 90-96

Loss of space and changes in the dental arch after premature loss of the lower primary molar: A longitudinal study


Dept. of Pedodontics, Govt. Dental College, Trivandrum, India

Correspondence Address:
Padma Kumari B
Dept. of Pedodontics, Govt. Dental College, Trivandrum
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-4388.26023

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The purpose of the study was to evaluate the space changes, dental arch width, arch length and arch perimeter, after the unilateral extraction of lower first primary molar in the mixed dentition period. A longitudinal study was conducted among forty children in the age group of 6-9 years, who reported for extraction of lower first primary molar in the department of Pedodontics, Govt. Dental College, Trivandrum. Study models were made from alginate impression taken before extraction and after extraction at the periodical intervals of two months, four months, six months and eight months. The mesiodistal width of lower first primary molar of the non-extracted side was taken as the control. The results of the study showed statistically significant space loss in the extraction side ( P value <0.01) and no significant space loss in the control side ( P value > 0.05). The rate of loss was greatest in the first four months. The arch width, arch length and arch perimeter had no significant change from initial to eight months follow up. The present study challenges the use of a space maintenance under the circumstances of premature loss of mandibular primary molar for preventing space loss.






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  2005 - Journal of Indian Society of Pedodontics and Preventive Dentistry | Published by Wolters Kluwer - Medknow 
Online since 1st May '05