الفهرس 
Clinical evaluation of nano hydroxyapatite reinforced glass ionomer versus conventional glass ionomer in treatment of root caries in geriatric patients
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Abstract
Aim: This randomized clinical trial aimed to evaluate the clinical performance of nano hydroxyapatite reinforced glass ionomer (Carbomer) versus conventional glass ionomer cement (Fuji IX) in root caries of geriatric patients.Methodology: A total of 22 participants received 44 restorations randomly using either; carbomer or Fuji IX. After cavity preparation, restorative materials were applied according to manufacturers{u2019} instructions. Restorations were evaluated using modified USPHS criteria by two blinded assessors after 1, 3, 6, 9 and 12 months. Chi square test was used to associate between the type of restorative material; either Carbomer or Fuji IX and clinical performance. A P value {u2264} 0.05 was considered statistically significant. Results: After12 months there was no statistically significant difference between both materials for marginal staining, surface texture, marginal adaptation, secondary caries, postoperative sensitivity, colour match and retention (P = 0.4885, P = 0.1320, P = 0.3483, P = 0.9170, P = 0.7518, P = 0.1043 and P = 0.2998 respectively), while there was statistically significant difference between both materials for anatomical contour after 12 months (P = 0.0477). Conclusions: Both Carbomer{u2122} and Fuji IX showed similar and successful clinical performance in the purpose of restoring root surface of permanent teeth in geriatric patients. statistically significant difference was observed at anatomical contour at 12 months and colour match within different follow up periods