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Updated: Aug 18, 2026
In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
Published on: March 7, 2014
Effect of segmental Le Fort I osteotomy on maxillary tooth type-related pulpal blood-flow characteristics
R Emshoff1, R Kranewitter, S Gerhard
1Department of Oral and Maxillofacial Surgery, University of Innsbruck, Innsbruck, Austria. Maxillofaziale-Chirurgie@uibk.ac.at
Unlabelled:
Laser Doppler flowmetry (LDF) is a noninvasive method to assess pulpal blood-flow (PBF). Osteotomies may have segment-related losses of pulpal sensibility.
Objectives:
To determine the effect of segmental Le Fort I osteotomy on tooth-type related PBF values.
Materials And Methods:
In 12 volunteers, maxillary incisors, canines, and premolars were investigated bilaterally by LDF to assess local PBF values before and after surgery. Perfusion units (PU) were in 3 sessions, on the day before surgery and at 4 and 56 days after osteotomy.
Results:
Measurements before surgery were significantly higher than at 4 days after surgery for the canine (P <.01) and for the overall PBF values (P <.01). At 4 days assessment, PBF values of tooth types adjacent to vertical osteotomy cuts showed a significant decrease for the lateral incisors (P <.05), canines, and first premolars (P <.05), with no significant differences between the preoperative and postoperative values for tooth types not adjacent to vertical osteotomy cuts (P <.05).
Conclusions:
Segmental Le Fort I osteotomy induced a short-term and long-term decrease in maxillary PBF values of tooth types adjacent to vertical osteotomy cuts.
