Korean J Orthod.
1986 Sep;16(2):31-41.
A study on the initial reaction of craniofacial complex to maxillary headgear traction by laser holography
- Affiliations
-
- 1Department of Orthodontics, College of Dentistry Seoul National University, Korea.
Abstract
- The purpose of this study is to examine the initial reaction of craniofacial complex to the traction of headgears which are frequent used in clinical practice by using holographic interference method. Changes In the fringe pattern according to the traction conditions (outer bow length, load amount, direction) were compared. Human dry skull was used as experimental material, the results were as follows. 1. The density of fringes Increased with an increase in load. 2. Maxillary headgear affected circummaxillary bones-temporal bone, zygomatic bone, nasal bone, frontal bone, sphenoid bone as well as maxilla. 3. The most upward-backward displacement was observed in a high pull head gear (30degrees), this is though to be a optimal direction for supressing the growth of the maxilla.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- A cephalometric evaluation of anterior J hook headgear traction to the maxilla
- A finite element and strain gauge analysis on the displacement of craniofacial complex with cervical headgear
- Immediate changes in the mandibular dentition after maxillary molar distalization using headgear
- Combined treatment with headgear and the Frog appliance for maxillary molar distalization: a randomized controlled trial
- Spatial changes of the maxillofacial complex following maxillary protraction of human dry skull
