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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

Distribution of the implants by length and diameter.
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fig4: Distribution of the implants by length and diameter.

Mentions: In total, 35 patients (20 males and 15 females) were considered for inclusion in the present study, over a 2-year period (January 2009–March 2011), in two different clinical centers. However, 5 patients presented conditions enlisted in the exclusion criteria (one for immunocompromised status, two for uncontrolled diabetes mellitus, and two for treatment with amino-bisphosphonates) and could not be included in the study. Consequently, with regard to the aforementioned inclusion and exclusion criteria, only 30 patients (18 males and 12 females; mean age 70 ± 5.5 years, range 62–81, median 69, CI 95%: 68.1–71.9) were enrolled in the present study. Among these patients, 12 (40%) were smokers. All patients had conventional complete dentures or implant-supported ODs in the mandible. In total, 120 implants were placed: 60 in the maxillary lateral incisor and 60 in the first premolar area. The distribution of implants by length and diameter was in accordance with Figure 4. Thirty maxillary ODs, each one supported by 4 implants, were delivered.


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)

Distribution of the implants by length and diameter.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig4: Distribution of the implants by length and diameter.
Mentions: In total, 35 patients (20 males and 15 females) were considered for inclusion in the present study, over a 2-year period (January 2009–March 2011), in two different clinical centers. However, 5 patients presented conditions enlisted in the exclusion criteria (one for immunocompromised status, two for uncontrolled diabetes mellitus, and two for treatment with amino-bisphosphonates) and could not be included in the study. Consequently, with regard to the aforementioned inclusion and exclusion criteria, only 30 patients (18 males and 12 females; mean age 70 ± 5.5 years, range 62–81, median 69, CI 95%: 68.1–71.9) were enrolled in the present study. Among these patients, 12 (40%) were smokers. All patients had conventional complete dentures or implant-supported ODs in the mandible. In total, 120 implants were placed: 60 in the maxillary lateral incisor and 60 in the first premolar area. The distribution of implants by length and diameter was in accordance with Figure 4. Thirty maxillary ODs, each one supported by 4 implants, were delivered.

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