Combined Tooth-implant Supported Prostheses
Condition: Dental Implant; Short Dental Implant
Study type: Interventional

Summary: 
      The goal of this clinical study is to evaluate clinical performance of combined tooth-implant
      supported 3 unit fixed partial dentures in the posterior mandible and was to compare and
      evaluate them with the complications of 3 unit fixed partial dentures supported with free
      standing dental implants.The main question[s] it aims to answer are:

      1.Is there any difference in terms of mechanical and biological complications as well as
      marginal bone level between free standing and combined tooth-implant supported 3 unit Fixed
      Partial Dentures in posterior mandible.

      Participants will receive either 2 dental implants(Control group) or 1 standart length dental
      implants to be combine with abutment tooth or 1 short dental implant to be combine with
      abutment tooth for supporting 3 unit fixed partial dentures.
    

Detailed description: 
      Purpose: The aim of the study was to evaluate clinical performance of combined tooth-implant
      supported 3 unit fixed partial dentures in the posterior mandible and was to compare and
      evaluate them with the complications of 3 unit fixed partial dentures supported with free
      standing dental implants.

      Material and methods: 78 partially edentulous patients in the posterior mandible (Kennedy 1
      and Kennedy 2), age between 18-65 with no systemic disorders were recruited for the study
      (n=26). Group 1served as control group and received 2 dental implants for supporting 3 unit
      fixed partial dentures (FPD). In group 2 dental implants longer than 8 mm and in group 3
      shorter than 8 mm were inserted to replace first or second molar combined with first or
      second premolar respectively to support cement retained 3 units FPD. Periapical radiographs
      were taken with parallel technique for evaluation of marginal bone resorption (CBL) and
      modified plaque index (MPI), bleeding index (BI) and sulcus depth of abutment teeth was
      recorded at the time of FPD insertion, 6 months after FPD insertion and annually. Abutment
      tooth intrusions, de-cementation of the restoration, porcelain chipping/delamination,
      framework fracture, abutment screw loosening, abutment and abutment screw fracture, implant
      fracture were also recorded as complications.
    

Intervention name(s): Insertion of 1 Nucleoss T4 dental implants in posterior mandible; Insertion of 1 Nucleoss T5 dental implants in posterior mandible; Insertion of 2 Nucleoss T4 dental implants posterior mandible
Intervention type(s): Procedure; Procedure; Procedure
Intervention description(s): Nucleoss T4 dental implants is combined with first or second premolar to support 3 unit fixed partial dentures; Nucleoss T5 dental implants is combined with first or second premolar to support 3 unit fixed partial dentures; 2 freestanding Nucleoss T4 dental implants is used to support 3 unit fixed partial dentures
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: None (Open Label)
Primary purpose: Treatment