Journal article
Neurosensory disturbances following bone harvesting in the symphysis: a prospective clinical study.
- von Arx T Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Berne, Berne, Switzerland. thomas.vonarx@zmk.unibe.ch
- Häfliger J
- Chappuis V
- 2005-08-25
Published in:
- Clinical oral implants research. - 2005
Adolescent
Adult
Aged
Chin
Cohort Studies
Dental Pulp
Female
Follow-Up Studies
Humans
Hypesthesia
Lip
Lip Diseases
Male
Mandible
Middle Aged
Prospective Studies
Radiography, Panoramic
Sensation Disorders
Skin
Suture Techniques
Tissue and Organ Harvesting
Tooth Apex
English
OBJECTIVE
To analyse the occurrence and resolution of neurosensory disturbances following bone harvesting from the symphysis.
MATERIAL AND METHODS
In 30 patients, skin sensitivity of the chin/lower lip area and pulp sensitivity of all mandibular anterior teeth were assessed preoperatively, at the time of suture removal, at 6 and 12 months postoperatively. In addition, bone defect dimensions of the donor site were measured intraoperatively, and distances from defect margins to adjacent anatomical structures, such as root apices, mental foramen and inferior border of mandible, were assessed postoperatively on a panoramic radiograph.
RESULTS
Pulp sensitivity changes were found in 18.6% of adjacent teeth at the time of suture removal. At the 6-month follow-up, 8.1% of teeth, and at the 12-month re-examination, 0.6% of teeth presented with altered sensitivity. This decrease over time of the number of affected teeth per patients with sensitivity changes was significant (P=2.35e-007). Lower lip hypaesthesia was only observed in one patient postoperatively, with complete resolution at the 6-month follow-up. Radiographic measurements of distances between donor defect and adjacent anatomical structures only reached significant difference for one parameter in patients with sensitivity changes compared with patients without sensitivity changes.
CONCLUSIONS
Patients must be informed about possible transient and long-term sensitivity changes of adjacent teeth and soft tissues following bone harvesting from the chin. However, by correctly placing mucoperiosteal incisions and bone cuts, the risk of sensitivity changes can be minimized.
To analyse the occurrence and resolution of neurosensory disturbances following bone harvesting from the symphysis.
MATERIAL AND METHODS
In 30 patients, skin sensitivity of the chin/lower lip area and pulp sensitivity of all mandibular anterior teeth were assessed preoperatively, at the time of suture removal, at 6 and 12 months postoperatively. In addition, bone defect dimensions of the donor site were measured intraoperatively, and distances from defect margins to adjacent anatomical structures, such as root apices, mental foramen and inferior border of mandible, were assessed postoperatively on a panoramic radiograph.
RESULTS
Pulp sensitivity changes were found in 18.6% of adjacent teeth at the time of suture removal. At the 6-month follow-up, 8.1% of teeth, and at the 12-month re-examination, 0.6% of teeth presented with altered sensitivity. This decrease over time of the number of affected teeth per patients with sensitivity changes was significant (P=2.35e-007). Lower lip hypaesthesia was only observed in one patient postoperatively, with complete resolution at the 6-month follow-up. Radiographic measurements of distances between donor defect and adjacent anatomical structures only reached significant difference for one parameter in patients with sensitivity changes compared with patients without sensitivity changes.
CONCLUSIONS
Patients must be informed about possible transient and long-term sensitivity changes of adjacent teeth and soft tissues following bone harvesting from the chin. However, by correctly placing mucoperiosteal incisions and bone cuts, the risk of sensitivity changes can be minimized.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/j.1600-0501.2005.01138.x
- PMID 16117767
- Persistent URL
- https://folia.unifr.ch/global/documents/115859
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