These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Mandibular condylar cartilage response to moving 2 molars in rats.
    Author: Jiao K, Wang MQ, Niu LN, Dai J, Yu SB, Liu XD.
    Journal: Am J Orthod Dentofacial Orthop; 2010 Apr; 137(4):460.e1-8; discussion 460-1. PubMed ID: 20362904.
    Abstract:
    INTRODUCTION: The purpose of this study was to investigate the responses of mandibular condylar cartilage to moving 2 molars in different combinations. METHODS: Rats were assigned to male and female control and experimental groups (each, n = 5). Elastic rubber bands were used to move medially the maxillary left and the mandibular right first molars in experimental group I. The same method was used to distally move the maxillary left and the mandibular right third molars, 2 mandibular third molars, and 2 maxillary third molars in experimental groups II, III, and IV, respectively. At the end of the eighth week, all condyles were examined histologically. The areas of histologic change as a percentage of total cartilage area were compared by using the Mann-Whitney U test. RESULTS: Cartilage degenerative remodeling was observed in experimental groups II, III, and IV. The percentage areas of degenerative remodeling were higher in female experimental groups II and III than in the female control group, and in female experimental group II than in female experimental group IV and male experimental group II (all, P <0.05). CONCLUSIONS: The mandibular condylar cartilage of female rats responded variously to different combinations of molar movement; the most obvious remodeling was observed in groups in which the maxillary left and mandibular right third molars were moved.
    [Abstract] [Full Text] [Related] [New Search]