title: Flapless transcrestal sinus augmentation using hydrodynamic piezoelectric internal sinus elevation with autologous concentrated growth factors alone.
abstract: OBJECTIVE
  The purpose of this retrospective study was to evaluate the success rate of implants and the amount of sinus augmentation using the flapless hydrodynamic piezoelectric internal sinus elevation (HPISE) technique with autologous concentrated growth factors (CGF) alone.
  
  
  METHODS
  A total of 11 maxillary sinuses were augmented using the HPISE technique through the flapless transcrestal approach. Sixteen implants (average 11.38 mm in length and 4.83 mm in diameter), with 2 different surfaces, were placed simultaneously with CGF alone. Plain panoramic radiograms and cone-beam computed tomograms (CBCT) were taken in all patients to evaluate the sinus augmentation preoperatively and postoperatively.
  
  
  RESULTS
  The sinus membranes were successfully elevated, averaging 13.95 ± 6.61 mm in immediate postoperative CBCT without any iatrogenic perforation. After an average 23.8 weeks, the average bone gain above the sinus floor was 8.23 ± 2.88 mm in the axial aspect of CBCT. No complications were recorded in any patients during the follow-up period.
  
  
  CONCLUSIONS
  The flapless transcrestal approach to the sinus augmentation using the HPISE technique with autologous CGF alone could be an alternative to the lateral approach, even at severely resorbed edentulous posterior maxilla with insufficient bone height.
authors.affiliation: *Clinical Instructor, Department of Dentistry and Oral and Maxillofacial Surgery, Daegu Catholic University Hospital, Daegu, Korea. †Professor, Department of Dentistry and Oral and Maxillofacial Surgery, Daegu Catholic University Hospital, Daegu, Korea. ‡Assistant Professor, Department of Dentistry and Oral and Maxillofacial Surgery, Daegu Catholic University Hospital, Daegu, Korea.
authors.forename: Ji-Min
authors.initials: JM
authors.lastname: Kim
authors.forename: Dong-Seok
authors.initials: DS
authors.lastname: Sohn
authors.forename: Min-Su
authors.initials: MS
authors.lastname: Bae
authors.forename: Jee-Won
authors.initials: JW
authors.lastname: Moon
authors.forename: Ju-Hyoung
authors.initials: JH
authors.lastname: Lee
authors.forename: In-Sook
authors.initials: IS
authors.lastname: Park
mesh_terms: D000328:Adult; D054893:Cone-Beam Computed Tomography; D015921:Dental Implants; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D059546:Sinus Floor Augmentation / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants