Cranial base and maxillary changes in patients treated with Frankels functional regulator (1b)
Med. oral patol. oral cir. bucal (Internet)
; 17(4): 689-696, jul. 2012. ilus, tab
Article
in En
| IBECS
| ID: ibc-103105
Responsible library:
ES1.1
Localization: BNCS
ABSTRACT
Objectives: The purpose of this study was to assess cranial base and maxillary growth in patients with Class IItype I malocclusions when treated with Frankels functional regulator (FR-1b). Study Design: The treatment group was made up of 43 patients that were divided into two groups: prepubescent (n: 28), and pubescent (n: 15). The control group included 40 patients who did not receive any kind of treatment and were likewise divided into a prepubescent group (n: 19), and a pubescent group (n: 21). A computerized cephalometric study was carried out and superimpositions were done in order to assess the antero-posterior, vertical and rotational movement of the maxilla. Results: The results indicate that anterior cranial length is not affected by the regulator but the cranial deflection of the treatment group was diminished. Although a slight counterclockwise rotation effect on the upper jaw was observed due to treatment, no growth restriction of the maxilla in a vertical or antero-posterior direction was observed compared to other non-treated Class II-type I malocclusion patients. Conclusion: The functional regulator does not have any effect on anterior cranial length, but it does affect the angulation of the cranial base. According to our results, the appliance has demonstrated a flattening effect of the cranial base (p<0.05) in the treated sample. The functional regulator induces counterclockwise rotation rather than vertical or sagittal changes in the maxilla (AU)
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Collection:
06-national
/
ES
Database:
IBECS
Main subject:
Orthodontics, Corrective
/
Cephalometry
/
Skull Base
/
Jaw
Limits:
Humans
Language:
En
Journal:
Med. oral patol. oral cir. bucal (Internet)
Year:
2012
Document type:
Article