Skeletal Class Ⅲ patients treated with Fränkel function regulator type Ⅲ in the early and late mixed dentition / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 257-262, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-259417
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the outcome of skeletal Class Ⅲ patients treated with Fränkel function regulator type Ⅲ (FR Ⅲ)in the early mixed and late mixed dentition.</p><p><b>METHODS</b>The samples consisted of 45 mild and moderate skeletal Class Ⅲ patients(26 males, 19 females; meanage, [7.9±1.3] years) treated with FR Ⅲ. According to Hellman's dental developmental stages, these samples were divided into early-treated group(n=24) and late-treated group(n=21). Lateral cephalograms were taken at the beginning and the end of treatment. Twenty-one measurements on hard and soft tissue were included.</p><p><b>RESULTS</b>After treatment, SNA, ANB, NA-Apo, Wits, U1-SN, U1-NA, Overjet, UL-EP were significantly increased (1.0±1.9)°, (1.2±1.6)°, (2.6±4.2)°, (1.8±2.7) mm, (4.2±7.6)°, (2.6±7.5)°, (3.6±2.3) mm and (0.8±2.2) mm(P<0.05). OP-SN and IMPA were significantly decreased (1.5±3.7)°and (1.4±4.2)°(P<0.05). There were significant differences in SNA, ANB, UL-EP, IMPA, L1-NB between early-treated group and late-treated group(P<0.05).</p><p><b>CONCLUSIONS</b>FR Ⅲ was suitable for the treatment of mild and moderate skeletal Class Ⅲ patients. The result was better in the early-treated patients than in late-treated ones.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Therapeutics
/
Cephalometry
/
Treatment Outcome
/
Orthodontic Appliances, Functional
/
Dentition, Mixed
/
Overbite
/
Time-to-Treatment
/
Malocclusion, Angle Class III
Limits:
Child
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2016
Type:
Article
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