Esthetic impact of premolar extraction and nonextraction treatments on Korean borderline patients

Lim, Hoi-Jeong; Ko, Kwang-Taek; Hwang, Hyeon-Shik

doi:10.1016/j.ajodo.2006.04.051

Cited by 50 publications

(52 citation statements)

References 27 publications

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“…This study found that the labial protrusion in white profiles tended to increase over time; moreover, Korean respondents preferred more concave profiles and white respondents preferred more convex profiles. In the same way, in the study conducted by Lim et al, 12 preferences were shown for more concave profiles in Korean adults with normal occlusion.…”

Section: Insupporting

confidence: 61%

“…In the study by Lim et al, 12 it was emphasized that the esthetic evaluation of facial profiles could differ according to the evaluators, their social environment and the period of history in which they lived, particularly when they consider the ethnic characteristics of the subjects; however, there were no significant differences among dentists and laypersons in their perception of esthetic impact.…”

Section: Inmentioning

confidence: 99%

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Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators

Pithon

Silva

Almeida

et al. 2013

The Angle Orthodontist

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Section: Insupporting

confidence: 61%

Section: Inmentioning

confidence: 99%

Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators

Pithon

Silva

Almeida

et al. 2013

The Angle Orthodontist

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“…The amount of crowding and protrusion are major factors influencing the decision of whether to extract teeth as part of orthodontic treatment, 16,17 and the decision to extract four second premolars was often made in cases involving mild crowding and mild dental protrusion. 18,19 However, there is little scientific information available to facilitate an accurate prediction of extraction space distribution, and controversy surrounds the distances of incisor and molar movement in second premolar extraction treatment.…”

Section: Discussionmentioning

confidence: 99%

A comparison of second premolar extraction and mini-implant total arch distalization with interproximal stripping

Jung

2012

The Angle Orthodontist

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Objective: The effect of total arch distalization using orthodontic mini-implants (OMIs) combined with interproximal stripping (IPS) and second premolar extraction was investigated in Class I malocclusion patients. Materials and Methods: A total of 66 consecutively treated Class I malocclusion (Class I molar relationship; 0 mm , overbite and overjet , 4.5 mm) patients ranging in age from 17 to 44 years who received single-phase treatment were included in this study. Pre-and posttreatment lateral cephalograms and dental casts were measured and compared statistically. Results: In the distalization with IPS group, 3.6 mm and 3.8 mm of crowding in the upper and lower arches, respectively, were resolved, and 3.8 mm and 3.2 mm of upper and lower incisor retraction, respectively, were achieved simultaneously by the treatment. As a result of the second premolar extraction treatment, 3.9 mm and 3.6 mm of crowding in the upper and lower arches, respectively, were resolved, and 3.3 mm and 3.2 mm of incisor retraction, respectively, were achieved during treatment. There was no statistically significant difference in the amount of crowding and incisor retraction between the two groups. Conclusions: Total arch distalization using an OMI with IPS did not yield a significantly different treatment result compared to second premolar extraction treatment. (Angle Orthod. 2013;83:680-685.)

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“…Individuals who lose their deciduous teeth early because of caries could be more susceptible to tooth migration and occlusion problems, such as dental crowding [42]. The loss of permanent teeth, in contrast, could have the opposite effect, increasing the length of alveolar ridge available for teeth to occupy, thereby reducing crowding [43]. As premature loss of these dental elements usually occurs among populations with a low income and poor level of education [44], dental crowding can be expected to have a greater prevalence in adolescents whose families are financially better off, as observed in this study.…”

Section: Discussionmentioning

confidence: 99%

Is Malnutrition Associated with Crowding in Permanent Dentition?

Thomaz

Cangussú

Silva

et al. 2010

IJERPH

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Evidence suggests that energy-protein malnutrition is associated with impaired growth and development of facial bones. The objective of this study was to investigate the association between nutritional status and reduced space for dental eruption (crowding) in permanent dentition. A cross-sectional study with probabilistic sampling design was used. We evaluated 2,060 students aged 12 to 15 years enrolled in schools in the northeast of Brazil. Crowding was defined according to World Health Organization (WHO) as misalignment of teeth due to lack of space for them to erupt in the correct position. Nutritional status was evaluated by means of body mass index and height-for-age, using the WHO’s reference curves. Parents and adolescents responded to a questionnaire about demographic, socioeconomic, biological and behavioral characteristics. The associations were estimated by odds ratio (OR) in multivariate logistic regression analysis (alpha = 0.05). Confounding and effect-modification were taken into account. An association between low height-for-age (z-score < −1SD) and crowding was only observed in adolescents with a prolonged history of mouth breathing (OR = 3.1). No association was observed between underweight and crowding. Malnutrition is related to crowding in permanent dentition among mouth-breathing adolescents. Policy actions aimed at reducing low height-for-age and unhealthy oral habits are strongly recommended. However, further studies are needed to increase the consistency of these findings and improve understanding of the subject.

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Esthetic impact of premolar extraction and nonextraction treatments on Korean borderline patients

Cited by 50 publications

References 27 publications

Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators

Photos vs silhouettes for evaluation of profile esthetics between white and black evaluators

A comparison of second premolar extraction and mini-implant total arch distalization with interproximal stripping

Is Malnutrition Associated with Crowding in Permanent Dentition?

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