الفهرس 
Stability of dental implants placed in patients with Vitamin D deficiency using sequential drilling versus a new one single drilling design
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Abstract
Aim: Evaluation of implant stability using sequential drill versus a new one single drill on patients with vitamin D deficiency. Materials and Methods: Thirty patients with vitamin D deficiency participated in this study (17 Females and 13 Males). All Patients were randomly assigned (n=15). Fifteen patients went for sequential drilling technique (group A) and fifteen patients went for single drill technique (group B). Implant stability was measured using (Periotest M) at baseline and after six months. All patients underwent vitamin D supplement. Results: All patients in both groups showed implant success after six months of follow-up except for one patient in (group A) showed implant failure with a deficiency in vitamin D serum level. There was no significant difference between the new design single drill technique and sequential drilling technique for osteotomy preparation in healed bony site for staged implant placement regarding implant osseointegration, Periotest records, and crestal bone loss. Using vitamin D supplement increased vitamin D serum level in patients with vitamin D deficiency resulting in better bone-implant contact and subsequently increasing implant success. Conclusion: There was no significant difference between a single drill and sequential drills for osteotomy preparation and implant osseointegration in patients with vitamin D deficiency, but single drill was 4 minutes faster. Vitamin D deficiency should be corrected by vitamin D supplement to enhance implant osseointegration