A 5-year retrospective clinical study of the Dentium implants

Abstract

PURPOSEThe aim of this retrospective study was to evaluate cumulative survival rate (CSR) of Implantium implants followed for 5 years and association between risk factors and the CSR.MATERIALS AND METHODSA total of two hundred forty-nine Implantium Implants System (Dentium, Seoul, Korea) placed in ninety-five patients from 2004 to 2009 were investigated with several identified risk factors (sex, systemic disease, smoking, alchohol, reason of tooth loss, length, arch (maxilla or mandible), replace tooth type (incisor, canine, premolar or molar) Kennedy classification, prosthodontic type, prosthodontic design, opposite dentition, abutment type, occlusal material, occlusal unit, splint to tooth, cantilever, other surgery). Clinical examination (mobility, percussion, screw loosening, discomfort, etc.) and radiographic examination data were collected from patient records including all problems during follow-up period according to protocols described earlier. Life table analysis was undertaken to examine the CSR. Cox regression method was conducted to assess the association between potential risk factors and overall CSR.RESULTSFive of 249 implants were failed. Four of these were lost before loading. The 5-year implant cumulative survival rate was 97.37%. Cox regression analysis demonstrated a significant predictive association between overall CSR and systemic disease, smoking, reason of tooth loss, arch, Kennedy classification and prosthodontic design (P<.05). The screw related complication was rare. Two abutment screw fractures were found. Another complications of prosthetic components were porcelain fracture, resin facing fracture and denture fracture (n=19).CONCLUSIONThe 5-year CSR of Implantium implants was 97.37%. Implant survival may be dependent upon systemic disease, smoking reason of tooth loss, arch, Kennedy classification and prosthodontic design (P<.05). The presence of systemic diseases and combination of other surgical procedures may be associated with increased implant failure.

A 5-year prospective clinical study of Neobiotech implants for partially edentulous patients

“…This result is comparable with CSR results of previous studies of widely used titanium implants in Korean population with survival rate ranges from 95.4 -98.9% and follow up period from 5 to 9 years. 12,14,[23][24][25] Furthermore, 5 and 10-year retrospective clinical study of Implantium implants system (Dentium, Seoul, South Korea) and 7 years of Osstem implants (Osstem Implant Co., Ltd., Busan, Korea) reported a CSR of 97.27%, 97.9% and 95.37% respectively.…”

“…12,13 On the other hand, 7-year clinical study of Osstem implants revealed that implant survival rate was influenced with increased implant diameter, reduced prosthetic loading period and performance of bone graft.…”

“…There were only few long-term clinical studies over a 5-year follow-up regarding several other domestic implant systems in Korea and were only limited to retrospective clinical studies. [12][13][14] Despite of numerous papers reporting high implant survival and success rates, implant failures influenced by local and systemic risk factors are still inevitable and showed contradictory results. [15][16][17] In addition, assessment of Korean ethnic characteristics such as arch form, dietary patterns, bone quality, clench force and other risk fac-…”

Three-year Prospective Evaluation of Immediately Loaded Mandibular Implant Overdentures retained with Locator Attachments

“…The junction between the implant machined collar bevel and the microrough surface was used as the reference line. 39,40 The distance between the reference line and the most coronal implant-bone contact point was measured to the nearest 0.1 mm using Kodac R4 dental software. The value was positive when the implant-bone contact point was more coronal than the reference line and negative when the contact point was more apical to the reference line.…”

Clinical efficacy of cross-sectional imaging compared with panoramic imaging and virtual 3D models for the assessment of dental implant placement.

“…The overall dental implant failure rate is approximately 3% in all dental sites in upper and lower jaws (Lee, et al, 2011, Babbush, et al, 2012. The replacement of missing teeth by prosthetically restored implants in the molar region is particularly challenging as this region has greater occlusal forces than the anterior region of the mouth (Rossetti, et al, 2010) and therefore the amount of bone volume for fixture placement and restorative space is critical.…”