Two Cases Reports of Inflammatory Follicular Cysts Associated with Chronic Apical Periodontitis in Deciduous Teeth

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  • 乳歯根尖性歯周炎により炎症性濾胞性歯嚢胞が発生した2症例

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Abstract

We had two cases of 7-year-3-month and 8-year-4-month old girls who had inflammatory follicular cysts and malposition of left lower second premolars which were associated with chronic apical periodontitis of the preceding deciduous teeth. In case 1, nine months after root canal filling with Vitapex, there was an unclearly demarcated swelling of the alveolar bone ranging from the apical region of the left lower second deciduous molar to the mucobuccal fold. X-ray examination showed radiolucent findings of root resorption at the left lower second deciduous molar involving the crown of the left lower second premolar, with the resorption of Vitapex.<BR>In case 2, seven months after root canal filling with Vitapex, there was a swelling with the size of the tip of the thumb in the buccal alveolar bone region of the left lower second deciduous molar, which showed a similar finding to case 1 in the X-ray examination.<BR>For treatment of the two cases, tooth extraction of the deciduous precessors and marsupialization were carried out. Space maintenance for the premolars which were abnormally positioned, led to their normal position.<BR>These cases indicated that periodic radiographic evaluation following pulpal therapy, especially in infected root canal treatment of deciduous molars, was very important to avoid the development of inflammatory follicular cysts involving the developing permanent tooth bud.

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