RT Journal Article
T1 Long-term outcome of dental implants after maxillary augmentation with and without bone grafting
A1 Cara-Fuentes, Manuel
A1 Machuca-Ariza, Jesus
A1 Ruiz-Martos, Alberto
A1 Ramos-Robles, Ma-Carmen
A1 Martinez-Lara, Ildefonso
K1 Bone formation
K1 sinus membrane elevation
K1 maxillary sinus
K1 bone grafting
K1 Sinus membrane elevation
K1 Posterior maxilla
K1 Floor augmentation
K1 Clinical report
K1 Bovine bone
K1 Placement
K1 Integration
K1 Immediate
K1 Survival
K1 Lift
AB Background: This study aims to evaluate the technique of sinus bone reformation, which consists of elevating the sinus membrane and placement the implant without bone graft, compared with the widely-used technique involving raising the maxillary sinus and grafting, using animal hydroxyapatite as the filler, while simultaneously fixing the implants.Material and Methods: This is a retrospective study on two groups of patients who underwent elevation of the sinus membrane and simultaneous placement of the implant. The grafting technique was applied to one group, while the other had no graft. An alveolar ridge height of 4 to 7 mm was necessary. Radiological control was undertaken at 6 months and one year post-prosthetic loading. In each group 38 implants were placed.Results: No significant behavioural differences were observed in the implants according to the Albrektsson success criteria. Implant failure was observed in 2 implants from the bone grafting group (success rate 93%) and in 1 implant from the reformation group (success rate 97%). In this group, bone formation was observed on both sides of each implant, the bone gain was measured using image management software (2.7 +/- 0.9mm mesial and 2.6 +/- 0.9mm distal). There was no correlation between mesial and distal bone gain and implant's length.Conclusions: The results indicate that bone reformation is a valid technique in cases involving atrophy of the posterior maxilla. Primary stability, maintenance of space by the implant, and the formation of a blood clot are crucial in this technique in order to achieve bone formation around the implant. It is an alternative to the conventional technique of sinus lift with filling material, and has several advantages over this procedure, including a lower infection risk, as it does not involve a biomaterial, reduced cost, a simpler technique, and better acceptance by the patient.
PB Medicina oral s l
SN 1698-6946
YR 2016
FD 2016-03-01
LK http://hdl.handle.net/10668/19364
UL http://hdl.handle.net/10668/19364
LA en
DS RISalud
RD May 9, 2025