Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Mar 20;8(1):27.
doi: 10.3390/dj8010027.

Evaluation of Profile Changes in Class II Individuals Treated by Means of Herbst Miniscope Appliance

Stefano Martina  1 , Maria Luisa Di Stefano  2 , Francesco Paolo Paduano  3 , Domenico Aiello  2 , Rosa Valletta  4 , Sergio Paduano  2
Affiliations

Evaluation of Profile Changes in Class II Individuals Treated by Means of Herbst Miniscope Appliance

Stefano Martina et al. Dent J (Basel). .

Abstract

Background: To evaluate the profile changes following orthopedic/orthodontic treatment with the Herbst Miniscope® appliance in subjects affected with Class II malocclusion with mandibular retrusion.

Methods: A total of 44 patients presenting a skeletal Angle Class II malocclusion (ANB > 4°) due to mandibular retrusion and a cervical maturation stage between CS2 and CS3 were included in the study. Of these 44 patients, 22 (mean age 11.9 ± 1.3, HBT group) were treated using the Herbst appliance, while 22 (mean age 10.6 ± 1.3, CTR group) were followed for a 12-month observational period. A cephalometric tracing was performed at the beginning of treatment (T0) and after 12 months (T1).

Results: In both groups there was a significant advancement of soft tissue pogonion (HBT = 3.5 ± 3.0 mm, p < 0.001; CTR = 2.2 ± 2.9 mm, p < 0.001), but the difference between the two groups was not significant (p = 0.172). On the contrary, both groups had a significant advancement of the mandibular sulcus (HBT = 3.7 ± 2.8 mm, p < 0.001; CTR = 1.2 ± 2.2 mm, p < 0.001) and a lower lip protrusion (HBT = 3.45 ± 2.51 mm, p < 0.001; CTR = 1.7 ± 2.7 mm, p = 0.008), but in both cases the HBT group showed a statistically significant greater increase in sulcus protrusion (p = 0.002) and lower lip protrusion (p = 0.029) than controls. There were no statistically significant effects on the upper jaw.

Conclusions: The Herbst appliance advanced the lower jaw soft tissues.

Keywords: Herbst Miniscope; class II malocclusion; functional appliance; functional treatment; soft tissues.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Cephalometric reference lines.
Figure 2
Figure 2
Cefalometric measuring points.
Figure 3
Figure 3
Linear measuring procedure.
See this image and copyright information in PMC

References

    1. McLain J.B., Proffit W.R. Oral health status in the United States: Prevalence of malocclusion. J. Dent. Educ. 1985;49:386–396. - PubMed
    1. Ngan P.W., Byczek E., Scheick J. Longitudinal evaluation of growth changes in class II division 1 subjects. Semin. Orthod. 1997;3:322–331. doi: 10.1016/S1073-8746(97)80055-2. - DOI - PubMed
    1. Rongo R., Bucci R., Adaimo R., Amato M., Martina S., Valletta R., D’Antò V. Two-dimensional versus three-dimensional Frӓnkel Manoeuvre: A reproducibility study. Eur. J. Orthod. 2019 doi: 10.1093/ejo/cjz081. - DOI - PubMed
    1. Dimberg L., Arnrup K., Bondemark L. The impact of malocclusion on the quality of life among children and adolescents: A systematic review of quantitative studies. Eur. J. Orthod. 2015;37:238–247. doi: 10.1093/ejo/cju046. - DOI - PubMed
    1. McComb J.L., Wright J.L., Fox N.A., O’Brien K.D. Perceptions of the risks and benefits of orthodontic treatment. Community Dent. Health. 1996;13:133–138. - PubMed

LinkOut - more resources