Comparative Study Between Laser Sintered Implant and Acid Etched Implant Seated in the Maxillary Premolar Area

Abstract

Introduction: conventionally dental implants were produced by machining titanium rods, then surface treatments or coatings are applied. The direct laser fabrication (DLF) is a new technology by which we can produce a dental implant with complex geometry that allows better osseointegration, through enhancing the differentiation of stem cells into osteoblasts and endotheliocytes leading to bone formation around the implant in a better and quicker way. Objectives: to compare osseointegration between laser sintered implants and acid etched implants. Materials and methods: This randomized clinical trial was conducted on twenty patients having edentulous spaces in the maxillary premolar area. They were divided equally into two groups, group A and group B, ten patients in each group. Laser sintered implants were placed in the edentulous spaces in group A patients, while conventional implants were placed in group B patients. Clinical and radiographic evaluations were carried out after 4, 6 and 9 months for both groups. Results: : Regarding the plaque index the scores of group A were found to be insignificantly lower than those of group B at 4 and 6 months and significantly lower at 9 months. The mean probing depth values in group A were significantly lower than group B at 4 and 6 months and insignificantly lower at 9 months. While, the implant mobility score was 0 for both groups. Regarding the mean marginal bone defect, values for group A were insignificantly lower than group B at 4 months, while significantly lower at 6 and 9 months. Conclusion: The use of both laser sintered and acid etched implants for replacement of maxillary premolars have significant success.

Stability and integration of laser sintered versus sandblast acid etched implants

“…The radiographic bone level changes from 4 months resulted in a mean bone defect of 0.64 mm for the Laser group and it was 0.98 and 1.24 at 6 and 9 months respectively. The mean bone defect for acid treated implants was 0.66, 1.16, 1.38 at 4, 6, 9 months respectively and this agrees with the research done by Halwag et al in 2015 (19) .…”

“…This is an important advantage that may allow bone ingrowth and vascularization, thus enhancing osseointegration and long-term reliability of an implant (16,17) . By using (DMLS), it is easy to create porosity which can be tailored to match human cortical bone (18,19) .The present study compared the effect of SLA and DMLS implants on stability and success of the implant.…”

Stability and integration of laser sintered versus sandblast acid etched implants

“…The radiographic bone level changes from 4 months resulted in a mean bone defect of 0.64 mm for Laser group and it was 0.98 and 1.24 at 6 and 9 months respectively. The mean bone defect for acid treated implants was 0.66, 1.16, 1.38 at 4, 6, 9 months respectively and this agrees with the research done by Halwag et al in 2015 (9) . Considering the peri-implant pocket depth, at 4 months, the mean of peri-implant probing depth in group A was 0.88 and 1.50 in group B which showed statistically significant difference (P = 0.032).…”

“…Basically, the machine produces the object on a moveable platform by applying incremental layers of the pattern material. This is an important advantage may allow bone ingrowth and vascularization, thus enhancing osseointegration and long-term reliability of an implant (9) . The present study was done to compare the effect of SLA and DMLS implants on stability and success of the implant.…”