Upper incisor position in the sagittal plane when smiling. A photographic and CBCT study.

Background: The aim of this study was to analyze the anteroposterior position between the upper incisors (UI) and the soft tissues based on photographs in which the head has been oriented along the Frankfort Horizontal Plane.

Material And Methods: Restrospective case-control study carried out by analizing photographic and CBCT images of 109 patientes. The sample was divided into 4 different groups: 21 normocclusive (N), 29 Class II/1st, 29 Class II/2nd y 30 Class III.

Comparison of condylar position in normal occlusion, Class II Division 1, Class II Division 2 and Class III malocclusions using CBCT imaging.

Background: The aim of this study was to establish the condylar position in a group of patients with normal occlusion, compared to Class II Div 1, Class II Div 2 and Class III malocclusions using CBCT imaging.

Material And Methods: Retrospective case-control study carried out by analyzing CBCT images of 80 patients. The sample was divided into 4 different groups with 20 patients each (40 TMJ).

Class II subdivision: Cone beam computed tomography- CBCT Analysis.

Background: To estimate whether there is skeletal and/or dental asymmetry in class II subdivision patients, between the Class II side and the Class I side using of cone beam computed tomography (CBCT).

Material And Methods: A sample of 30 patients, from a private clinic, retrospectively selected; with a class II subdivision diagnosis requiring treatment, who underwent wide-field CBCT that met the inclusion criteria. The data was processed with Dolphin 3D version 11.

Effect of temperature on the orthodontic clinical applications of NiTi closed-coil springs.

Unlabelled: NiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic retransformation during the unloading. The temperature variations induced changes in the spring force.

The segmented arch approach: a method for orthodontic treatment of a severe Class III open-bite malocclusion.

An open bite is a common malocclusion, and it is generally associated with several linked etiologic factors. When establishing the treatment plan, it is essential to consider every aspect of the various etiologic causes and their evolution; this will help to correct it. This article reports the case of a girl aged 10.

Lower incisor position in different malocclusions and facial patterns.

Introduction: The position of lower incisor has been of considerable concern when planning an orthodontic treatment, having been recognized as one of diagnostic keys, Very important in the development of malocclusion and facial pattern.

Objectives: In this study we claim to determine the importance of the position and inclination of lower incisor in the different malocclusions and facial patterns, and to base which of the cephalometric measurement parameters are the mostreliable. Material and methods.

Obstructive sleep apnea syndrome (OSAS). Review of the literature.

Obstructive sleep apnea and hypopnea syndrome is characterized by repeated airway collapse during sleep. The literature describes multiple causes of the disease. The main cause is a reduction of the expansion forces of the pharyngeal dilator muscles, as in situations of genioglossal muscle dysfunction, and discoordination between the inspiratory activity of the muscle and respiratory effort, which play an important role in progression of the disease.

Tobacco smoking and radiographic periapical status: a retrospective case-control study.

Introduction: The aim of this study was to investigate radiographically the relationship of tobacco smoking and periapical status by using a retrospective case-control study design.

Methods: The records of 79 controls and 79 age- and sex-matched cases were examined. Case was defined as a patient who has at least 1 radiographically detectable periapical lesion in a tooth.

Improvement in adhesion of the brackets to the tooth by sandblasting treatment.

In oral orthodontic treatments, achievement of a good adhesion between brackets and teeth surfaces is essential. One way to increase adhesion is to apply a surface treatment of teeth facing surfaces through the projection of abrasive particles to produce a surface roughness which improves adhesion of the bracket to the tooth, because of the significantly increased contact between the two surfaces. The effect on adhesion through the use of this technique in different types of brackets, as well as through the use of different blasting particles, however, is yet not well described.

External apical root resorption in maxillary root-filled incisors after orthodontic treatment: a split-mouth design study.

Introduction: The purpose of this study was to compare, in a split mouth design, the external apical root resorption (EARR) associated with orthodontic treatment in root-filled maxillary incisors and their contralateral teeth with vital pulps.

Methodology: The study sample consisted of 38 patients (14 males and 24 females), who had one root-filled incisor before completion of multiband/bracket orthodontic therapy for at least 1 year. For each patient, digital panoramic radiographs taken before and after orthodontic treatment were used to determine the root resortion and the proportion of external root resorption (PRR), defined as the ratio between the root resorption in the endodontically treated incisor and that in its contralateral incisor with a vital pulp.

Relationship between smoking and endodontic variables in hypertensive patients.

Introduction: The aim of this study was to investigate the relationship between smoking and the prevalence of apical periodontitis and root canal treatment in hypertensive patients.

Methods: In a cross-sectional study, the records of 100 hypertensive patients, 50 smokers and 50 nonsmokers, were examined. Periapical status of all teeth was assessed by using the periapical index score.

Hypertension and dental periapical condition.

Introduction: The purpose of this study was to investigate the prevalence of apical periodontitis and endodontic treatment in hypertensive patients and control subjects without hypertension.

Methods: In a cross-sectional study, the records of 40 hypertensive patients and 51 control subjects were examined. Periapical status of all teeth was assessed by using the periapical index score.

Antibiotic use by members of the Spanish Endodontic Society.

Introduction: The purpose of this study was to determine the prescribing habits of active members of the Spanish Endodontic Society (AEDE) with regard to antibiotics.

Methods: A one-page questionnaire was sent to the active members of the AEDE. Of the 508 surveys mailed, 158 surveys were returned, and 140 were found to be usable.