Clinical Implications of the Premature Loss of the Mandibular Primary Canine

LEE, SANG-HO

doi:10.5933/JKAPD.2015.42.1.87

The premature loss of the mandibular primary canine is relatively frequent and a sign of the upcoming spaceproblems in the transitional period. This situation is caused by the permanent lateral incisor resorbing the rootof the primary canine during its eruption. Bilateral loss of primary canines in a crowded arch leads to the lingual tipping of the permanent incisors, withthe consequent reduction in the arch perimeter and increase in overbite. When the loss of a primary canine isunilateral, tipping of the adjacent incisors occurs toward the space, resulting in midline deviation. In thesesituations, treatment possibilities, such as extraction of the antimeric tooth or placement of a passive lingualarch, can be applied; although there are some controversies concerning this. Most space problems with less than 4 mm can be resolved through preservation of the leeway space usingsequential disking of the primary teeth and a passive lingual arch, regaining space or limited arch expansion inthe late mixed dentition. In cases with 4~6 mm of space problems, arch expansion (A-P or transverse) can beapplied. Space problems with more than 6 mm should be treated through diagnosis and treatment planning. Most of these cases will require extraction of permanent teeth including serial extraction (guidance of eruption).

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REFERENCES (48)
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* 2021년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

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