Mohammed A. Khafagy , Medhat A. Kataia And Abd El Gawad RA,

ABSTRACT
The Present (in Vitro Study) Aimed To Evaluate Calcium Hydroxide Intracanal Medication Remnants After Removal By Two Methods Of Irrigation: Conventional Irrigation And Navitip FX Brush And The Effect Of The Remnants On The Adaptability Of Two Root Canal Sealers: AH Plus And MTA Fillapex. Seventy Sound Human Freshly Extracted Single Rooted Teeth Were Collected, Randomly Classified After Cleaning And Shaping Into Two Main Groups Group A (n=50): Root Canals Were Filled With Injectable Calcium Hydroxide, Group B (n=20): Root Canals Were Sealed Empty Without Calcium Hydroxide Intracanal Medication (control Group). Samples Of Group A Were Subdivided Into Two Subgroups (n=20); SubgroupA1 (calcium Hydroxide Removed With Conventional Irrigation), Subgroup A2 (calcium Hydroxide Removed With Navitip FX Brushes). Group B And Subgroups A1, A2 Were Subdivided Into Two Divisions (n=10); Divisions B�, A1� And A2� AH Plus Sealer Used For Root Canal Obturation, Divisions B?, A1? And A2? MTA Fillapex Sealer Used For Root Canal Obturation. After Removal Of Calcium Hydroxide Remnants Evaluation Was Done By EDAX (energy Dispersive X-ray Micro-analyzer). After 7 Days From Root Canal Obturation, Samples Were Checked Under SEM To Evaluate Sealing Ability Of Tested Root Canal Sealers. Results Regarding Amount Of Calcium Hydroxide Remnants After Removal By The Two Techniques Showed That Conventional Irrigation Removed Calcium Hydroxide Slightly Higher Than Navitip FX Brushes. Results Regarding The Adaptability Showed That AH Plus Is Better Than MTA Fillapex In The Control Group (without Ca(OH)2, However AH Plus Showed Slightly Better Sealing Ability Than MTA Fillapex In The Presence Of Ca(OH)2 Remnants.