Applicability of cone beam computed tomography gray values for estimation of primary stability of dental implants

• DOI: 10.14295/bds.2021.v24i1.2068
• Publication Date: 2020-12-22T21:56:56Z
• Authors: Mahnaz Sheikhi; Mehdi Karami; Somayeh Abbasi; Amirhossein Moaddabi; Parisa Soltani
• Keywords: Hounsfield scale; Implant stability quotient; Initial stability

Objective: To evaluate the relationship between bone density measured by computed tomography (CT) and cone beam (CBCT) (Sirona’s Galileos scanner) with primary stability of dental implants. Material methods: 20 fresh bovine femoral heads were prepared removal soft tissue, sectioning bone, placement markers for location angulation Bone peri-implant areas was determined preoperatively CT CBCT scanning samples represented Hounsfield units (HUs) gray values (GVs), respectively. Then, 60 implants in three sizes (diameter = 4 mm, length 8, 10, 12 mm) inserted into bones maximum insertion torque (IT) recorded. Osstell device also used determining implant quotient (ISQ) each implant. Statistical analysis performed on data (alpha 0.05). Results: Mean ± SD GV, HU, ISQ 1592.75 231.82, 675.26 115.38 61.90 10.14, Moreover, most frequent IT limit 30-35 Ncm (41.4%). Significant relationships observed HU IT, GV ISQ, all sizes. significantly correlated to other. Conclusion: scans are positively associated Therefore, GVs obtained from scanner can be preoperative selection edentulous sites which allow better or locations require further procedures enhancing success rate KEYWORDSComputed tomography; Cone Dental