유아기우식증 치료를 위한 레진침투법에서 제단백제재의 사용 = A Modified Pretreatment with Deproteinization for Resin Infiltration in Early Childhood Caries

국문 초록 (Abstract)

이 연구는 유전치 비와동성 우식 병소에 레진침투법을 시행할 때 sodium hypochlorite(NaOCl) 제단백 후 phosphoric acid($H_3PO_4$) 산부식 처리에 따른 법랑질 표면구조 및 레진 침투깊이 변화를 알아보았다. 90개의 발치된 비와동성 병소의 유전치를 전처리에 따라 5개 군으로 나누었다 : I군 hydrochloric acid(HCl) 2분; II군 NaOCl 1분, $H_3PO_4$ 1분; III군 NaOCl 2분, $H_3PO_4$ 1분; IV군 NaOCl 1분, $H_3PO_4$ 2분; V군 NaOCl 2분, $H_3PO_4$ 2분. 그 중 15개는 전계방사주사전자현미경을 통해 표면을 관찰하였고, 75개는 레진침투 후 공초점레이저주사현미경을 통해 병소 깊이와 레진 침투깊이를 측정하여 레진 침투도를 도출했다. NaOCl 적용 시간이 길어질수록 법랑질 산부식 I, II형 비율이 증가하였다. 레진 침투도는 V군이 II, III군에 비해 통계학적으로 유의하게 높았고(p < 0.05), IV, V군은 유의할 만한 차이가 없었다. 레진침투법은 유전치 초기 우식 병소의 치료로 사용될 수 있으며, 전처리 제로 15% HCl 산부식 대신 5.25% NaOCl 제단백 후 35% $H_3PO_4$ 산부식이 대안으로 고려될 수 있다.

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