Create an account
the general term for all procedures designed to modify and re-shape defects and deformities in the bone surrounding the teeth
must determine the structure of the osseous defect, sound probe(perio probe), limitations do exist
classification of infrabony or intraboony defects
three-wall, two-wall, one-wall and combined defect
occurs most frequently in the interdental region, usually the remaining bony walls are facial, lingual and proximal can be circumferential defects
most prevalent osseous defect found interdentally with facial and lingual walls remaining, involves both the interproximal walls mainly crater defects or interdental crater defects.
one wall defect
usually only one interdental wall remains, hemi septum if remaining wall is proximal
objectives of osseous surgery
create contours that permit better plaque control, create contours that will parallel the contours of the gingival tissue after healing, permit primary wound closure and crown lengthening (bone is actually removed for crown placement)
management of osseous defects
osteoplasty, ostectomy, induce or promote regrowth and regeneration of bone, amputate root or divide in half, non-surgical treatment and extraction of tooth
in a healthy relationship, there is 1mm of CT attachment to the root and 1mm of JE along the tooth and there will be approximately a 1mm space between the gingiva and the tooth (sulcus)
Indications for osseous resection
shallow infrabony or intabony defects, class I and selected class II furcation, flat or reverse architecture, tori, exostosis, ledges, contouring of bone in conjunction with root resection and achieving primary closure of flaps in new attachment
esthetics-max anterior, isolated deep defect, advance perio, local anatomic factors, high carries rate and systemic conditions
Indications for bone grafts
patient selection, defect selection(3wall & class 2 fur has a greater chance)
types of bone grafts
autografts (2 types), allografts, xenografts, alloplastic grafts and composite grafts
free osseous autografts
contain cortical or cancellous bone or combination obtained intraoral (max tuberosities, edentualous ridges, retromolar ridges, healing sockets, during osteoplasty or ostectomy) or extraoral
treatment of teeth with _________ involvement can complicate periodontal treatment, diagnosis is determined by use of nabers probe and evaluating radiographs
Prognosis of furcations
extent of horizontal and vertical bone loss in the intraradicular space, number of roots, structure and furcal root structure, structure of intraradicular space, health status of PDL and access for surgical correction
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together