Implant rejection can be caused by micromovement and implant loading during bone regeneration phase. Thus, initial stability and fixation of implants are an important goal which permits fulfilling immediate functional load and dental rehabilitation right on a surgery day. This article describes new data connected with possibility and prospects of titanium bar usage for immediate implantation.
Once, a 60-year-old woman came to the clinic for examination. She had no systemic diseases, according to the medical record, and proved that she did not take any medicines. Orthopantomography (Sirona ORTHOPHOS XG) detected teeth affected by periodontitis which were extracted afterwards (Figure 1).
Before extraction it had been decided to use immediate denture. It appeared to be not stable, and the patient experienced great discomfort while talking and eating. CBCT tomography was conducted in order to examine mandible anatomy towards inferior alveolar nerve position.
On the basis of data received the decision was taken to place five implants in order to stabilize the patient’s prosthetic denture. Two radioopaque markers were used as a pattern (Figure 2). Then another panoramic exposure was made, and surgery computerization was conducted by means of special software (Figure 3).
Afterwards implants were placed to the mandible under local infiltration ultracain anaesthesia. Implantation spots had been washed with physiological solution beforehand. After the surgical intervention (Figure 4) five abutments were connected with implants by means of a microlock (Figure 5). Then an oral titanium bar was welded which had been preliminary made by a dental technician (Figure 6), (Figure 7) for implant position fixation.
The bar was extracted from the mouth together with abutments (Figure 8) and covered with a pink nontransparent film (Figure 9). The prosthesis was connected with the bar by means of acrylic resin (Figure 10) and clamping screws with abutments (Figure 11). Examination of the patient was conducted in two and fifteen days, and no problems were detected during this period (Figures 12 and 13).
Stability and fixation lacking is the main reason for denture discomfort complaints. Besides, implant restoration can appear to be impossible because of atrophic changes in mandible bone tissue. Immediate implantation with a certain denture type showed positive results and service ability.
Other investigations prove successful intraoral restoration of edentulous atrophic jaw with fixed permanent dentures by means of a titanium bar which serves as a support for the implant and is welded right on the surgery day.
Laying of a rigid bar on implants and using of intraoral welding technology give positive results during fixation at the early stage of bone tissue regeneration. Bone tissue heals with significant decrease of external influence which can cause micromovements and lead to implant falling out.