title: Dynamic implant valve approach for dental implant procedures.
abstract: OBJECTIVE
  To present the results of our current research involving the dynamic implant valve approach (DIVA) in cases with human patients.
  
  
  METHODS
  The new kind of implant was designed with an internal sealing screw that might serve for drug delivery system and possible endoscopic direct observation via its channel. The DIVA was used in cases when the implant insertion should be combined with the maxillary sinus floor lifting and/or bone augmentation procedure. A total of 63 patients (female n = 31, male n = 32, age range 33-67 years old, mean age 49 years old) were treated with DIVA and 218 new type implants were inserted.
  
  
  RESULTS
  Out of 218 inserted implants, 146 implants were inserted in the maxilla with bone level < 5 mm, and 72 implants were inserted in the maxilla with bone level > 5 mm. The number of implants per patients varied from one to eight. The failure consisted of seven implants (3.2%) in five patients. No correlation was found between failure cases and the bone density or quality. Follow up (4 to 18 months) showed that in 211 cases (96.8%), the implantation was totally successful both from objective clinical, imaging (cone beam computed tomography) and subjective patients' viewpoints.
  
  
  CONCLUSIONS
  The new dynamic implant valve approach simplified dental implantation procedure and postoperative treatment. The implant with an inner sealing screw could be considered for use in cases when elevation of the maxillary sinus membrane is needed, as well as in cases when bone augmentation procedures or future treatment might be suspected.
authors.forename: Oded
authors.initials: O
authors.lastname: Nahlieli
mesh_terms: D000328:Adult; D000368:Aged; D000497:Alloys; D015519:Bone Density / Q000502:physiology; D018786:Bone Substitutes / Q000627:therapeutic use; D003094:Collagen / Q000627:therapeutic use; D054893:Cone-Beam Computed Tomography / Q000379:methods; D003722:Dental Alloys / Q000737:chemistry; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D004724:Endoscopy / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006882:Hydroxyapatites / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D017060:Patient Satisfaction; D059546:Sinus Floor Augmentation / Q000295:instrumentation / Q000379:methods; D013499:Surface Properties; D013530:Surgical Wound Infection / Q000209:etiology; D014025:Titanium / Q000737:chemistry; D016896:Treatment Outcome
chemical_list: D000497:Alloys; D018786:Bone Substitutes; D003722:Dental Alloys; D015921:Dental Implants; D006882:Hydroxyapatites; C074950:hydroxyapatite-beta tricalcium phosphate; C031462:titanium alloy (TiAl6V4); D003094:Collagen; D014025:Titanium