BACKGROUND: Caries infiltration aims to inhibit lesion progression, by occluding the porosities within the lesion body with low-viscosity resins. The ability in hampering lesion progression is correlated with the penetration depth (PD) of the infiltrant. AIM: This study aimed to compare the infiltration depths into proximal lesions in primary molars after different application times. DESIGN: Noncavitated natural caries lesions (n = 83) were etched with 15% HCl for 2 min and infiltrated for 0.5, 1, 3, or 5 min. Specimens were sectioned and PD at the maximum lesion depth (LD(max)) were analysed using dual fluorescence confocal microscopy. RESULTS: Percentage penetrations (PD/LD(max)) were significantly higher after 3 or 5 min compared with 0.5-min application (P < 0.05; Mann-Whitney test). For LD(max) <400 μm, no significant differences were observed between application times (P > 0.05). For LD(max) ≥400 μm, 3- and 5-min application resulted in significantly deeper infiltration compared with 0.5 min (P < 0.05). After 1-min application, PD was significantly lower than 5 min (P < 0.05), PD/LD(max) did not differ from all other groups (P > 0.05). CONCLUSIONS: Natural noncavitated proximal lesions in primary molars were deeply infiltrated after 1-min application in vitro. For deeper lesions, however, more consistent results were obtained after 3 min.
BACKGROUND: Caries infiltration aims to inhibit lesion progression, by occluding the porosities within the lesion body with low-viscosity resins. The ability in hampering lesion progression is correlated with the penetration depth (PD) of the infiltrant. AIM: This study aimed to compare the infiltration depths into proximal lesions in primary molars after different application times. DESIGN: Noncavitated natural caries lesions (n = 83) were etched with 15% HCl for 2 min and infiltrated for 0.5, 1, 3, or 5 min. Specimens were sectioned and PD at the maximum lesion depth (LD(max)) were analysed using dual fluorescence confocal microscopy. RESULTS: Percentage penetrations (PD/LD(max)) were significantly higher after 3 or 5 min compared with 0.5-min application (P < 0.05; Mann-Whitney test). For LD(max) <400 μm, no significant differences were observed between application times (P > 0.05). For LD(max) ≥400 μm, 3- and 5-min application resulted in significantly deeper infiltration compared with 0.5 min (P < 0.05). After 1-min application, PD was significantly lower than 5 min (P < 0.05), PD/LD(max) did not differ from all other groups (P > 0.05). CONCLUSIONS: Natural noncavitated proximal lesions in primary molars were deeply infiltrated after 1-min application in vitro. For deeper lesions, however, more consistent results were obtained after 3 min.
Authors: Jyothi Mandava; Y Shilpa Reddy; Sirisha Kantheti; Uma Chalasani; Ravi Chandra Ravi; Roopesh Borugadda; Ravi Kumar Konagala Journal: J Clin Diagn Res Date: 2017-04-01