Clinical Application Strategies of Maxillary Sinus Buccal Bony Window

Clinical Application Strategies of Maxillary Sinus Buccal Bony Window With Different Residual Bone Heights in Lateral Maxillary Sinus Floor Elevation

Through randomized controlled trials, investigators will recruit participants who need maxillary sinus floor elevation with different residual bone height, and utilize the maxillary sinus buccal bony window during the surgery. Then investigators will gather the related information of participants, collect and analyze their CBCT data, in order to help surgeons select the best operating method for different patients.

Through randomized controlled trials, investigators will recruit 60 participants who need maxillary sinus floor elevation with different residual bone height (0~3mm; 3~5mm), and utilize the maxillary sinus buccal bony window during the surgery (A: ground into pieces; B: replace the bone; C: turn inward to hold up the membrane). Then investigators will gather the related information of participants, collect and analyze their CBCT data, in order to help surgeons select the best operating method for different patients.

Inclusion Criteria:

• A single maxillary posterior tooth was missing, and the missing time was ≥ 3 months
• Gingival distance ≥ 4mm
• Residual bone height ≤ 5mm and residual bone width ≥ 6mm
• Good systemic health
• CBCT image was complete and clear, and there was no obvious artifact affecting the measurement
• Informed consent.

Exclusion Criteria:

• Untreated diabetes or other serious systemic diseases
• Untreated periodontal disease
• Uncontrolled periapical lesions of adjacent teeth
• Certain bone diseases such as osteoporosis and osteosclerosis
• Severe night bruxism
• Mental illness
• Pregnant or breast-feeding patients.