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Maxillary overdentures supported by four splinted direct metal laser sintering implants: a 3-year prospective clinical study.

Mangano F, Luongo F, Shibli JA, Anil S, Mangano C - Int J Dent (2014)

Bottom Line: The incidence of prosthetic complication was 17.8% (patient-based).Conclusions.Long-term clinical studies on a larger sample of patients are needed to confirm these results.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgical and Morphological Science, Dental School, University of Varese, Via Giuseppe Piatti 10, 21100 Varese, Italy.

ABSTRACT
Purpose. Nowadays, the advancements in direct metal laser sintering (DMLS) technology allow the fabrication of titanium dental implants. The aim of this study was to evaluate implant survival, complications, and peri-implant marginal bone loss of DMLS implants used to support bar-retained maxillary overdentures. Materials and Methods. Over a 2-year period, 120 implants were placed in the maxilla of 30 patients (18 males, 12 females) to support bar-retained maxillary overdentures (ODs). Each OD was supported by 4 implants splinted by a rigid cobalt-chrome bar. At each annual follow-up session, clinical and radiographic parameters were assessed. The outcome measures were implant failure, biological and prosthetic complications, and peri-implant marginal bone loss (distance between the implant shoulder and the first visible bone-to-implant contact, DIB). Results. The 3-year implant survival rate was 97.4% (implant-based) and 92.9% (patient-based). Three implants failed. The incidence of biological complication was 3.5% (implant-based) and 7.1% (patient-based). The incidence of prosthetic complication was 17.8% (patient-based). No detrimental effects on marginal bone level were evidenced. Conclusions. The use of 4 DMLS titanium implants to support bar-retained maxillary ODs seems to represent a safe and successful procedure. Long-term clinical studies on a larger sample of patients are needed to confirm these results.

No MeSH data available.


Related in: MedlinePlus

Three-dimensional (3D) reconstruction of the maxilla by means of implant navigation software, with virtual planning of implant placement.
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Related In: Results  -  Collection


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fig2: Three-dimensional (3D) reconstruction of the maxilla by means of implant navigation software, with virtual planning of implant placement.

Mentions: A complete examination of the oral hard and soft tissues was carried out for each patient. Panoramic radiographs formed the basis for the primary investigation. Preoperative workups included an assessment of the edentulous ridges using casts and diagnostic wax-up. CBCT scans were used as final investigation. CBCT datasets were eventually transferred to specific implant navigation software (Mimics, Materialise, Leuven, Belgium) to perform a 3D reconstruction of the upper jaws. With this navigation software it was possible to correctly assess the width of each implant site and the thickness and the density of the cortical plates and the cancellous bone, as well as the ridge angulations (Figure 2).


Maxillary overdentures supported by four splinted direct metal laser sintering implants: a 3-year prospective clinical study.

Mangano F, Luongo F, Shibli JA, Anil S, Mangano C - Int J Dent (2014)

Three-dimensional (3D) reconstruction of the maxilla by means of implant navigation software, with virtual planning of implant placement.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4279819&req=5

fig2: Three-dimensional (3D) reconstruction of the maxilla by means of implant navigation software, with virtual planning of implant placement.
Mentions: A complete examination of the oral hard and soft tissues was carried out for each patient. Panoramic radiographs formed the basis for the primary investigation. Preoperative workups included an assessment of the edentulous ridges using casts and diagnostic wax-up. CBCT scans were used as final investigation. CBCT datasets were eventually transferred to specific implant navigation software (Mimics, Materialise, Leuven, Belgium) to perform a 3D reconstruction of the upper jaws. With this navigation software it was possible to correctly assess the width of each implant site and the thickness and the density of the cortical plates and the cancellous bone, as well as the ridge angulations (Figure 2).

Bottom Line: The incidence of prosthetic complication was 17.8% (patient-based).Conclusions.Long-term clinical studies on a larger sample of patients are needed to confirm these results.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgical and Morphological Science, Dental School, University of Varese, Via Giuseppe Piatti 10, 21100 Varese, Italy.

ABSTRACT
Purpose. Nowadays, the advancements in direct metal laser sintering (DMLS) technology allow the fabrication of titanium dental implants. The aim of this study was to evaluate implant survival, complications, and peri-implant marginal bone loss of DMLS implants used to support bar-retained maxillary overdentures. Materials and Methods. Over a 2-year period, 120 implants were placed in the maxilla of 30 patients (18 males, 12 females) to support bar-retained maxillary overdentures (ODs). Each OD was supported by 4 implants splinted by a rigid cobalt-chrome bar. At each annual follow-up session, clinical and radiographic parameters were assessed. The outcome measures were implant failure, biological and prosthetic complications, and peri-implant marginal bone loss (distance between the implant shoulder and the first visible bone-to-implant contact, DIB). Results. The 3-year implant survival rate was 97.4% (implant-based) and 92.9% (patient-based). Three implants failed. The incidence of biological complication was 3.5% (implant-based) and 7.1% (patient-based). The incidence of prosthetic complication was 17.8% (patient-based). No detrimental effects on marginal bone level were evidenced. Conclusions. The use of 4 DMLS titanium implants to support bar-retained maxillary ODs seems to represent a safe and successful procedure. Long-term clinical studies on a larger sample of patients are needed to confirm these results.

No MeSH data available.


Related in: MedlinePlus