Skeletal, Dentoalveolar and Dental Changes after "Mini-Screw Assisted Rapid Palatal Expansion" Evaluated with Cone Beam Computed Tomography.

The purpose of this study was to evaluate skeletal, dentoalveolar and dental changes after Mini-screw Assisted Rapid Palatal Expansion (MARPE) using tooth bone-borne expanders in adolescent patients after analyzing different craniofacial references by Cone beam computed tomography (CBCT) and digital model analysis. This prospective, non-controlled intervention study was conducted on fifteen subjects (mean age 17 ± 4 years) with transversal maxillary deficiency. Pre (T1) and post-expansion (T2) CBCTs and casts were taken to evaluate changes at the premolars and first molar areas.

Craniofacial characteristics in Van der Woude syndrome.

Aim: To describe the particular craniofacial characteristics of Van der Woude syndrome(VWS) patients compared to patients with a non-syndromic cleft (CG1) and to a malocclusive healthy population (CG2).

Material And Methods: Retrospective case-control study. A sample of 110 matched-patients was recruited (VWS (n = 7), CG1 (n = 49), CG2 (n = 49)).

Efficacy and predictability of maxillary and mandibular expansion with the Invisalign® system.

Background: The purpose of this study is to evaluate the efficacy and predictability of upper and lower orthodontic expansion with the Invisalign® system.

Material And Methods: From a sample of 167 patients; 64 upper and 51 lower arches were randomly selected from patients who had been treated with plastic orthodontics (Invisalign® aligners, SmartTrack® material). Digital models were extracted at the beginning (ModT1) and at the end of treatment (ModT2) as well as the final ClinCheck® (CkT2).

Unusual Case of Extraction of Maxillary Lateral Incisors and Mandibular Central Incisors.

Introduction: This article's purpose is to report a case where maxillary lateral incisors and mandibular central incisors are extracted and a canine substitution was performed as the best therapeutic option in order to obtain symmetry in a malocclusion with an upper lateral incisor with poor prognostic, solve moderate crowding, get enough space for the permanent dentition, and provide stability to the results.

Case Report: An 11-year-old boy with straight profile with acute-to-normal nasolabial angle and protruded lips, mixed dentition, lower and upper severe crowding, and a bilateral molar angle Class I. The left maxillary lateral incisor failed endodontic treatment secondary to an intrusive traumatic lesion in the primary and permanent dentition.

Five radiographic methods for assessing skeletal maturity in a Spanish population: is there a correlation?

Objectives: The need for accurate techniques of estimating age has sharply increased in line with the rise in illegal migration and the political, economic and socio-demographic problems that this poses in developed countries today. The methods routinely employed for determining chronological age are mainly based on determining skeletal maturation using radiological techniques. The objective of this study was to correlate five different methods for assessing skeletal maturation.

Effectiveness of biologic methods of inhibiting orthodontic tooth movement in animal studies.

Introduction: A number of biologic methods leading to decreased rates of orthodontic tooth movement (OTM) can be found in the recent literature. The aim of this systematic review was to provide an overview of biologic methods and their effects on OTM inhibition.

Methods: An electronic search was performed up to January 2016.

Short-term effect of removal of fixed orthodontic appliances on gingival health and subgingival microbiota: a prospective cohort study.

Objective: The aim of this prospective longitudinal study was to assess and compare the microbiological and clinical parameters of patients wearing a fixed orthodontic appliance, as opposed to 10 days after the bracket had been removed following treatment.

Materials And Methods: In total, 122 patients participated in this study; 61 of the subjects were assessed at baseline (wearing a fixed orthodontic appliance: T1) and 10 days after bracket removal (T2). The other 61 individuals had never worn an orthodontic appliance before and these subjects served as controls (CT).

Management of occlusal canting with miniscrews.

A 14-year-old boy with a skeletal Class II malocclusion and open bite whose chief complaint was a posterior crossbite showed a canted occlusal plane with asymmetric gummy smile and mandibular deviation at clinical examination. The treatment with miniscrews focused on the bilateral intrusion of the maxillary posterior teeth and, after resolving the open bite, a new biomechanical technique involving joined miniscrews was applied for an en masse intrusion of the left side. This treatment strategy achieved optimal occlusion with improvements to the sagittal, vertical, and transverse relationships and achieved a harmonious smile.

Determination of periodontopathogens in patients with Cri du chat syndrome.

Objectives: Cri du chat syndrome is a genetic alteration associated with some oral pathologies. However, it has not been described previously any clinical relationship between the periodontal disease and the syndrome. The purpose of this comparative study was to compare periodontopathogenic flora in a group with Cri du chat syndrome and another without the síndrome, to assess a potential microbiological predisposition to suffer a periodontitis.

Integrated periodontal, orthodontic, and prosthodontic treatment in a case of severe generalized aggressive periodontitis.

Objective: This article reports a case of severe generalized aggressive periodontitis and subsequent collapse of the occlusion in a psychiatric patient, treated by an extremely conservative orthodontic-periodontal-prosthodontic treatment.

Summary: A woman presented with severe anterior proclination caused by severe periodontal disease and Angle's class II molar malocclusion. The patient wanted to preserve her teeth and rejected the idea of implant treatment.

Bone- and dentoalveolar-anchored dentofacial orthopedics for Class III malocclusion: new approaches, similar objectives? : a systematic review.

Objectives: To analyze the scientific literature and compare in the results of conventional orthopedic appliances with those obtained from recent bone-anchored orthopedics for Class III malocclusion.

Materials And Methods: The literature was systematically reviewed using PubMed/Medline, Scopus, and Scirus databases up to January 2012. Articles were selected by two different researchers (kappa index  =  0.

Stem cells in current paediatric dentistry practice.

New protocols for regenerative endodontic treatment along with the parallel development of tissue engineering technologies are changing traditional knowledge and treatment possibilities for young patients with pulp-affected permanent immature teeth. The regeneration and completion of apical root development in pathological situations such as these is a clinical challenge that traditional treatments have not so far been able to resolve with complete success. In clinical terms, the decision of whether to perform apexogenesis or apexification on an immature tooth is determined by whether the pulp tissue is vital or non-vital.

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.

Interleukin 1 receptor antagonist (IL1RN) genetic variations condition post-orthodontic external root resorption in endodontically-treated teeth.

External apical root resorption (EARR) is a frequent iatrogenic problem following orthodontic treatment in endodontically-treated teeth, about which the literature reports substantial variability in post-orthodontic treatment EARR responses. The main focus of the present study is to clarify whether variants in the interleukin-1 receptor antagonist gene coding for the IL-1ra protein have a positive/negative influence on EARR of endodontically-treated teeth. Ninety-three orthodontic patients were genetically screened for a single nucleotide polymorphism (SNP:rs419598) in the IL1 cluster.

A descriptive epidemiologic study of cleft lip and palate in Spain.

Objective: The purpose of this study was to investigate the distribution of different cleft patterns by sex, side of the cleft, and family history of clefts in a referral hospital in the south of Spain.

Study Design: One hundred twenty-three consecutive cleft lip subjects, with or without palates, attending the Stomatology Unit in the Virgen del Rocío University Hospital and in the Virgen Macarena University Hospital from October 2009 to May 2010 were studied.

Results: The unilateral complete cleft lip and palate (54.

The relationship between malocclusion, benign joint hypermobility syndrome, condylar position and TMD symptoms.

The current study investigated the association between temporomandibular disorders, malocclusion patterns, benign joint hypermobility syndrome and the initial condylar position. One hundred sixty-two subjects were analyzed using the Rocabado Temporomandibular Pain Analysis; Helkimo Index parameters; the Carter-Wilkinson modified test; and a mounting cast with condylar position indicator registration (MPI). The study revealed a significant association between: 1.

Study of mandibular growth in patients treated with Fränkel's functional regulator (1b).

Objectives: The purpose of this study was to assess mandibular growth in patients with Class II division 1 malocclusions when treated with Fränkel's functional regulator 1b.

Study Design: The treatment group was made up of 43 patients that were divided into two groups: prepubescent (n:28), and pubescent (n:15). The control group included 40 patients who did not receive any kind of treatment and were likewise divided into a prepubescent group (n:19), and a pubescent group (n:21).

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.

Postorthodontic external root resorption in root-filled teeth is influenced by interleukin-1β polymorphism.

Introduction: External apical root resorption (EARR) is a frequent iatrogenic effect of orthodontic treatment. The way root-filled teeth respond to orthodontic forces with respect to EARR has been reported as varying widely between individuals. Genetic variants in the interleukin-1 gene have been associated with an increased risk of experiencing postorthodontic EARR on vital teeth.

Association between condylar asymmetry and temporomandibular disorders using 3D-CT.

Objectives: Using reconstructed three-dimensional computed tomography (3D-CT) models, the purpose of this study was to analyze and compare mandibular condyle morphology in patients with and without temporomandibular disorder (TMD).

Study Design: Thirty-two patients were divided into two groups: the first comprised those with TMD (n=18), and the second those who did not have TMD (n=14). A CT of each patient was obtained and reconstructed as a 3D model.

Effects on the maxilla and cranial base caused by cervical headgear: a longitudinal study.

Objectives: The aim of this study is to test the possible orthopedic effects of cervical headgear on the cranial base and maxilla.

Study Design: a sample consisting of 79 subjects with skeletal class II malocclusion was divided into two groups. The experimental group was made up of 41 patients all treated with cervical headgear.

Cranial base and maxillary changes in patients treated with Frankel' s functional regulator (1b).

Objectives: The purpose of this study was to assess cranial base and maxillary growth in patients with Class II-type I malocclusions when treated with Frankel' s functional regulator (FR-1b).

Study Design: The treatment group was made up of 43 patients that were divided into two groups: prepubescent (n: 28), and pubescent (n: 15). The control group included 40 patients who did not receive any kind of treatment and were likewise divided into a prepubescent group (n: 19), and a pubescent group (n: 21).

Corticotomy-assisted orthodontic enhancement by bone morphogenetic protein-2 administration.

Purpose: To determine the possibility of synergistically enhancing orthodontic tooth movement (OTM) and bone formation in vivo by administering bone morphogenetic protein type 2 (BMP-2) on the tension side or in combination with corticotomy on the pressure side.

Materials And Methods: The sample consisted of 56 Wistar rats that were subjected to experimental OTM for 32 days using a split-mouth design. The sample was divided into 4 groups: a control group, a corticotomy group, a BMP-2 group, and a corticotomy plus BMP-2 group.

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.