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: Facial profile and lip position changes in adult Class II, Division 2 subjects treated with the Herbst-Multibracket appliance. A radiographic cephalometric pilot study.
    Author: Bock NC, Santo C, Pancherz H.
    Journal: J Orofac Orthop; 2009 Jan; 70(1):51-62. PubMed ID: 19194675.
    Abstract:
    OBJECTIVE: To examine the treatment and post-treatment effects of the Herbst-Multibracket (MB) appliance on facial profile and lip position in adult Class II, Division 2 subjects. MATERIAL AND METHODS: Lateral head films of 16 consecutively-treated adult Class II, Division 2 subjects (8 males, 8 females) with an average age of 18.8 years pre-treatment were analyzed on three occasions: before treatment (T1), after Herbst-MB treatment (T2) and 2 years post-treatment (T3). RESULTS: Treatment period (T2-T1): an increase occurred in the hard tissue profile angle (2.5 degrees; p < 0.001), the soft tissue profile angle excluding the nose (2.6 degrees ; p < 0.01), and the soft tissue profile angle including the nose (1.8 degrees; p < 0.05). The upper lip became more retrusive in relation to the Esthetic line (EL) (0.8 mm; p < 0.05) while the lower lip's position was unchanged. Lower lip coverage of the upper incisors was reduced (0.8 mm; p < 0.05). Post-treatment period (T3-T2): the soft tissue profile angle (excluding the nose) increased (1.6 degrees; p < 0.01), while the hard and soft tissue profile angles including the nose remained unchanged. Both, the upper and lower lips became more retrusive in relation to the EL (0.9 mm; p < 0.01 and 1.0 mm; p < 0.001). The lower lip coverage of the upper incisors remained unchanged. CONCLUSION: The hard and soft tissue profiles were straightened during Herbst-MB treatment, including a brief follow-up period. The lips became more retrusive while the lower lip coverage of the upper incisors was reduced.
    [Abstract] [Full Text] [Related] [New Search]