Soft Tissue Changes Following the Extraction of Premolars in Nongrowing Patients With Bimaxillary Protrusion

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Effects of extraction of four premolars on vermilion height and lip area in patients with bimaxillary protrusion.

The purpose of this study was to evaluate the effects of orthodontic treatment, involving the extraction of four premolars, on vermilion height and lip area. Twenty-eight female patients (mean 21.9 ± 3.1 years) who were diagnosed with bimaxillary protrusion were selected for this study to be treated by extraction of four premolars. The control group consisted of 28 female volunteers (mean 25.0 ...

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Arch dimensional changes following orthodontic treatment with extraction of four ‎first premolars

BACKGROUND AND AIM: Tooth extraction as a part of orthodontic treatment plan to create space for leveling and aligning teeth or causing tooth movement leads to changes in arch width and length. The outcome of these changes is important for the clinicians and affects the treatment and retention plans. Despite some previous studies, data in this regard are still scarce and further investigation i...

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comparative assessment of soft-tissue changes in class ii division 1 patients following extraction and non-extraction treatment

background: the extraction of teeth for orthodontic purpose has always been a controversial subject in the speciality. the aesthetics impact of the soft-tissue profile might play a key role in deciding on premolar extraction or non-extraction (ne) treatment, particularly in borderline patients. the purpose of this cephalometric study was to examine the soft-tissue treatment effects of class ii ...

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Cephalometric evaluation of soft tissue changes after extraction of upper first premolars in class ΙΙ div 1 patients

INTRODUCTION Tooth extraction to provide sufficient space, or camouflage of underlying skeletal problems is quite common in orthodontics. The present study evaluated soft tissue changes after upper first premolars extraction in class ΙΙ div 1 patients. MATERIAL AND METHODS 20 cases (15 females, 5 males), with a mean age of 17.8±2.9 years with class ΙΙ div1 malocclusion and normal vertical hei...

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ژورنال

عنوان ژورنال: The Angle Orthodontist

سال: 2010

ISSN: 0003-3219,1945-7103

DOI: 10.2319/010709-16.1