The 2 main indications for apical surgery are:
- Obtain a biopsy (where the tooth-tip pathology is
greater than 1cm in diameter)
- To achieve what could not be done by endodontic re-
treatment such as:
There is increased difficulty of the operation due to
anatomical & dental anatomical considerations, such as:
- Mouth Anatomy. Small oral opening, a prominent chin,
Inferior Alveolar & Mental Nerves, active facial &
mouth muscles, bony prominences (such as the
zygomatic process; anterior nasal spine, external
oblique ridge) and a shallow ‘trough’ (vestibule)
between the teeth, cheek and lips can hamper the
operation.
- Jaw Bone Thickness. The jaw bone is thicker in the
root tip region and more difficult access to the root end
Upper Premolars / Bicuspids, complicated by:
- Multiple Roots are present that often diverge widely
from each other (making access for the procedure
difficult and hence lower success rate for op)
- Sinus Floor can often be in close proximity to the tooth
tips that are being operated on. There is a chance of
perforating into the sinus (10 – 50% of cases) and
causing acute +/- chronic sinusitis (especially if any
debris has gone into the sinus).
- Root Anatomy is such that they are often difficult to
get a good root canal filling (due to isthmus /
anastomosis of the root systems). Hence, the
chances of success of the apicectomy will be reduced.
Lower Incisors & Canines / Eye-Teeth (Upper & Lower),
complicated by:
- Root Anatomy. Long and broad roots, that are in
proximity to adjacent roots and tilted towards either
the roof of the mouth (if upper) or the floor of the
mouth (if lower) (making access for the procedure
difficult and hence lower success rate for op).
Useful websites:
www.britishendodonticsociety.org.uk/patient_information.
html
www.aae.org/patients/patientinfo/faqs/endosurgery.htm
www.britishendodonticsociety.org.uk/profession/quality-
guidelines.pdf
www.rcseng.ac.
uk/fds/clinical_guidelines/documents/surg_end_guideline.pdf
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