Minutes of 1/16/04 meeting: Osseointegration Study Club
of
Meeting started at 8:45 AM
Speaker 1: Kenneth Hinds, DDS
Immediate
Loading of single tooth molars and incisors. Numerous case reports not all
related to the title, were presented using outstanding electronic techniques.
Subjects such as custom abutments or orthodontic extrusion were covered. More
than one implant system was used to support the presentation.
Speaker
2: Lyndon Cooper,
DDS,
Regenerative
dentistry: adult
stem cells for orofacial regeneration
Bone
formation: steps from mesenchymal progenitor cells to osteoblast were presented.
Role of stem cells, growth factors and cellular differentiation were discussed
in relation to osteoinduction.
Immediate
implant loading:
in clinical studies, using the Astra implant system, LC showed a survival rate
of 96% in early loaded (3 weeks) non-splinted implants.
Implant
design was discussed in view of immediate loading.
Four-implant
symphisis implant retained fixed prosthesis were treated similarly using
immediate loading. LC demonstrated a surgery and a interim prosthesis using a
video. This technique is only for denture experts.
Models
of bone response at implants:
immediate load
failure occurs at 3-5 weeks during the peak of bone resorption, not in the first
3 weeks. By using a surface treated Ti surface, the early bone formation
compensates for the initial bone resorption and therefore improves outcome in
immediate loading. Role of implant surface topography, ionic surface
modification, cervical micro threads, reduced initial resorption through implant
design were discussed; controlled loading. Avoid immediate loading on molars.
Need to have an exit strategy.
Esthetic
management using the Astra implant:
complete understanding of restoration contours in relation tooth shape and
cervical contours are pre-requisite for esthetic implant restorations. Clinical
cases were presented to support this concept.