Delayed Implants Outcome in Maxillary Molar Region.
BACKGROUND
The aim of the present study was to assess bone volume changes in maxillary molar regions after delayed implants placement.


METHODS
Patients presented large bone defects after tooth extractions. Reactive soft tissue was left into the defects. No grafts were used. Cone beam computed tomography (CBCT) scans were performed before tooth extractions, at implant placement (at 3 months from extraction) and 3 years after implant placement, bone volume measurements were assessed.


RESULTS
Bucco-lingual width showed a statistically significant decrease (p = .013) at implant placement, 3 months after extraction. Moreover, a statistically significant increase (p < .01) was measured 3 years after implant placement. No statistically significant differences (p > .05) were found between baseline values (before extraction) and at 3 years from implant placement. Vertical dimension showed no statistically significant differences (p > .05) at implant placement, 3 months after extraction. Statistically significant differences (p < .0001) were found between baseline values (before extraction) and at 3 months from implant placement as well as between implant placement values and 3 years later.


CONCLUSIONS
CT scans presented successful outcome of delayed implants placed in large bone defects at 3-year follow-up.
Adjunct Professor, Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.
Roberto
R
Crespi
Researcher, Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.
Paolo
P
Capparè
Fellow MD, Insubria University, Varese, Italy.
Giovanni
G
Crespi
Associate Professor, Dental School, Vita-Salute University, Milan, Italy.
Giorgio
G
Gastaldi
Full Professor and Chairman, Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.
Enrico F
EF
Gherlone
D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging; D054893:Cone-Beam Computed Tomography; D003758:Dental Implantation, Endosseous; D019250:Dental Implants, Single-Tooth; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008439:Maxillary Diseases / Q000000981:diagnostic imaging; D008875:Middle Aged; D008963:Molar; D011446:Prospective Studies; D061665:Time-to-Treatment; D014081:Tooth Extraction / Q000009:adverse effects*; D020390:Tooth Socket / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery
bone defects; dental implants; magnetic mallet; reactive soft tissue