IADR Abstract Archives
Caries Arrest and Lesion Appearance Using two Different Silver Fluoride Therapies on Primary Teeth With and Without Potassium Iodide: 12-Month Results
Objectives: To examine differences in caries arrest and lesion colour of primary tooth carious lesions treated using two different silver fluoride therapies with and without Potassium Iodide at 6mo and 12mo.
Methods: The study was a four-armed, parallel-design randomised controlled trial and investigated four protocols for caries arrest at 6mo. Children in Group 1 and Group 2 received Rivastar Silver Diammine Fluoride (SDF), and children in Group 3 and Group 4 received an aqueous silver fluoride solution (AgF). Children in Group 2 and Group 4 received a two-step procedure where application of the AgF or SDF solution was followed by KI.
Results: At the twelve-month follow-up 318 (75.5%) children were re-examined. The arrest rate varied by group membership; group 1 and group 3 had higher arrest rates (77.3% and 75.3% respectively) than group 2 and group 4 (65.4% and 51.2% respectively). One in ten teeth became pulpally involved over the course of study; those lesions where KI was placed had twice the chance of a lesion becoming pulpally involved. The use of KI was also associated with lower odds of arrest (12m OR 0.25) and higher odds of avoiding black discolouration (12m OR 6.08).
Conclusions: This study demonstrated that both AgF and SDF can effectively arrest carious lesions on primary teeth as consistent with other reported literature. The use of KI is associated with lower caries arrest rates and lower chances of the lesion becoming a black colour and should be limited to use on anterior lesions.
Methods: The study was a four-armed, parallel-design randomised controlled trial and investigated four protocols for caries arrest at 6mo. Children in Group 1 and Group 2 received Rivastar Silver Diammine Fluoride (SDF), and children in Group 3 and Group 4 received an aqueous silver fluoride solution (AgF). Children in Group 2 and Group 4 received a two-step procedure where application of the AgF or SDF solution was followed by KI.
Results: At the twelve-month follow-up 318 (75.5%) children were re-examined. The arrest rate varied by group membership; group 1 and group 3 had higher arrest rates (77.3% and 75.3% respectively) than group 2 and group 4 (65.4% and 51.2% respectively). One in ten teeth became pulpally involved over the course of study; those lesions where KI was placed had twice the chance of a lesion becoming pulpally involved. The use of KI was also associated with lower odds of arrest (12m OR 0.25) and higher odds of avoiding black discolouration (12m OR 6.08).
Conclusions: This study demonstrated that both AgF and SDF can effectively arrest carious lesions on primary teeth as consistent with other reported literature. The use of KI is associated with lower caries arrest rates and lower chances of the lesion becoming a black colour and should be limited to use on anterior lesions.