Use of Specifically Designed Drills for Internal Sinus Lifting

This prospective, randomized clinical study was conducted at the Ege University School of Dentistry and Department of Oral and Maxillofacial Surgery. Patients with atrophic maxillas and at least one tooth loss in this region were included. Randomization was performed to assign the patients to study groups. Patients treated with internal sinus lift using osteotome and implant surgery were assigned to Group 1, and patients treated with internal sinus lift using specifically designed drills and implant surgery were assigned to Group 2. At six months postoperatively, the healing cap was inserted during the second stage of surgery.

All implants were assessed based on primary stability (using implant stability quotient and torque value), marginal bone loss (as millimeters), and implant survival (as a percentage). Also, patient-reported outcomes were collected, including pain (using a visual analog scale), analgesic consumption (number of drugs taken during a week), and oral health impact profile survey).

Inclusion criteria

• Unilaterally or bilaterally missing teeth in the posterior maxilla,
• Residual bone height (4 mm to 6 mm),
• Completed periodontal and oral hygiene treatment,
• American Society of Anesthesiologists (ASA) score of I or II,
• > 18 years old,
• Willingness to participate

Exclusion criteria

• Infection or pathology related to maxillary sinus and surgical site,
• Tooth extraction within six months in the surgical site,
• Previous maxillary sinus surgery,
• Parafunction,
• Medical conditions associated with impaired or delayed wound healing,
• Smoking habit and alcohol or drug abuse,
• Pregnancy or nursing