Clinical Application Strategies of Maxillary Sinus Buccal Bony Window

Condition(s) studied

Investigational drug(s) / intervention(s)

different methods for maxillary sinus floor elevation: a: 0\~3mm+ground into pieces; b: 0\~3mm+replace the bone; c: 0\~3mm+turn inward to hold up the membrane; d: 3\~5mm+ground into pieces; e: 3\~5mm+replace the bone; f: 3\~5mm+turn inward to hold up the membrane

Study summary

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.

Eligibility

Primary outcome measure(s)

• ABH change — baseline, 6 months, and 1, 2, 3, 5, 10 years after the surgery
  Apical bone height (ABH): Represented the grafted height at baseline and the grafted height with neo-formed bone at follow-ups.
• ESBG change — baseline, 6 months, and 1, 2, 3, 5, 10 years after the surgery
  Endo-sinus bone gain (ESBG): ESBG = ABH + implant protrusion length at baseline; ESBG represented the grafted height and neo-formed bone, and described the height difference of radiopaque area in the sinus cavity at different times.
• RBH — baseline
  Residual bone height (RBH): Only assessed at baseline

Trial sites (1)

More The Dental Hospital of Zhejiang University School of Medicine trials in China