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PubMed · 1073906

Serial extration (an orthodontic challenge for the general practitioner).

C de Jesus Atienza
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Dentition, MixedHumansSerial ExtractionJournal Article

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C de Jesus Atienza. 1975. Serial extration (an orthodontic challenge for the general practitioner).. https://pubmed.ncbi.nlm.nih.gov/1073906/

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PubMed2005

[A study on the extraoral cervical traction in the treatment of skeletal Class II division 1 malocclusion in mixed dentition].

PURPOSE: To evaluate the effects of extraoral cervical traction on skeletal Class II division 1 malocclusion of early or late mixed dentition and discuss the optimal treatment timing. METHODS: The sample consisted of two groups of skeletal Class II division 1 malocclusion. One group with 11 cases was treated started in early mixed dentition while the other with 15 cases in late mixed dentition. All cases were treated with extraoral cervical traction headgear. Cephalometric analysis was conducted to evaluate the treatment effects. Student's t test was applied for statistical analysis. RESULTS: SNA, ANB and the length of maxilla (A-Ptm) were reduced and the inclination of maxillary incisor was decreased in both two groups. When comparing the two groups, it was found that the reduction of SNA was more notable, which means the inhibition of the maxilla was more evident in late mixed dentition. The difference was statistically significant (P<0.01). There was no significant difference on the distalization of the first upper molar between two groups (P<0.01). CONCLUSIONS: The extraoral cervical traction might be more effective in late mixed dentition to restrain maxillary growth in the treatment of skeletal Class II division 1 malocclusion.

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PubMed2005

Common factors among the major malocclusions.

Dental practitioners tend to classify malocclusions in a schematic fashion often forgetting the full possibilities of characteristics related to a particular situation or malocclusion. This paper is designed to clarify and describe the different malocclusions, stressing the multiple faces of Class I in the mixed dentition based on the previous work of Drs. Anderson, Dewey and Sim. The description of all the major malocclusions is included with their facial, skeletal, dental and functional characteristics. Guidelines for diagnosis and treatment planning with a summary of possible difficulties in treatment are also discussed.

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