Progress in Orthodontics

http://link.springer.com/journal/40510

List of Papers (Total 232)

Association between tooth size and interarch relationships in children with operated complete unilateral cleft lip and palate

Background To evaluate mesiodistal tooth width of patients with UCLP comparing tooth size in different Goslon Yardstick scores and between cleft and noncleft sides. Methods The Department of Orthodontics at Bauru Dental School and Hospital of Rehabilitation of Craniofacial Anomalies – University of Sao Paulo. Hundred forty-four pairs of dental casts of patients with UCLP. These...

Three-dimensional assessment of teeth first-, second- and third-order position in Caucasian and African subjects with ideal occlusion

BackgroundThe aim of this study was to provide an updated version of Andrews’ seminal study by exploiting 3D software to analyse the tip, torque and in-out values of two groups of different racial and ethnic background.MethodsThe analysis was conducted on one Caucasian group (30 individuals) and one of African origin (29). All subjects were adult, in normal occlusion and had no...

Computational fluid dynamics analysis of the upper airway after rapid maxillary expansion: a case report

Background Assessment of the upper airway volume, morphology, and mechanics is of great importance for the orthodontic patient. We hypothesize that upper airway dimensions have significant effects on the dynamics of the airway flow and that both the dimensions and mechanics of the upper airway are greatly affected by orthodontic and orthopedic procedures such as rapid maxillary...

In vitro study of the potential protection of sound enamel against demineralization

Background The objective of this study was to study the potential protection effect of different treatments against sound enamel demineralization around orthodontic brackets. Methods This is an in vitro randomized controlled study; artificial enamel demineralization of human premolars was created and compared with reference to control. The three materials used for enamel...

An evaluation of two types of nickel-titanium wires in terms of micromorphology and nickel ions’ release following oral environment exposure

Background This study aimed to compare superelastic and heat-activated nickel-titanium orthodontic wires’ surface morphology and potential release of nickel ions following exposure to oral environment conditions. Methods Twenty-four 20-mm-length distal cuts of superelastic (NiTi Force I®) and 24 20-mm-length distal cuts of heat-activated (Therma-Ti Lite®) nickel-titanium wires...

Sagittal lip positions in different skeletal malocclusions: a cephalometric analysis

Background The objectives of this paper are to (1) study use of soft tissue analyses advocated by Steiner, Ricketts, Burstone, Sushner and Holdway to develop soft tissue cephalometric norms as baseline data for sagittal lip position in Northeast Chinese adult population, (2) compare the sagittal lip positions in different skeletal malocclusions and (3) compare the sagittal lip...

Predicting changes in mandibular length and total anterior facial height using IGF-1, cervical stage, skeletal classification, and gender

Background The purpose of this study was to predict the annual growth rate of the mandible and total anterior facial height using IGF-1 levels together with cervical stage, skeletal classification, and gender. Methods Twenty-five orthodontic patients (12 females and 13 males) had their cervical stages, blood-spot IGF-1 levels, and cephalometric parameters measured at 1-year...

Sagittal and vertical effects of transverse sagittal maxillary expander (TSME) in three different malocclusion groups

Background The aim of this retrospective study was to cephalometrically evaluate the skeletal and dental effects of the transverse sagittal maxillary expander (TSME), for the correction of sagittal and transverse maxillary deficiency in class I, II, and III malocclusions. Methods The sample for this retrospective study included 45 patients (mean age, 8.4 years; 26 females, 19...

Psychological impact of visible differences in patients with congenital craniofacial anomalies

Background Patients with craniofacial anomalies often have appearance concerns and related social anxiety which can affect their quality of life. This study assessed the psychological impact of facial and dental appearance in patients with craniofacial anomalies in comparison to a general population control group. Methods The study involved 102 adult patients (51% male) with...

Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines

Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were...

Cephalometric study to test the reliability of anteroposterior skeletal discrepancy indicators using the twin block appliance

Background The objectives of this study were to check the reliability of the five angular and two linear parameters for sagittal maxillo-mandibular discrepancy and to compare and correlate angular parameters with the ANB angle, and the linear parameter with Wits analysis. Methods The pre-treatment and post-functional lateral cephalograms of 25 subjects (17 males, 8 females) with...

Missing upper incisors: a retrospective study of orthodontic space closure versus implant

Background The aim of this retrospective study was to compare the esthetic, periodontal, and functional outcomes of orthodontic space closure versus implant substitution in patients with missing maxillary incisors 5 years after completion of treatment. Methods The study group consisted of ten patients treated with orthodontic space closure (six males, four females, mean age 19...

An in vitro study on the effect of an oscillating stripping method on enamel roughness

BackgroundThe aim of the present study was to assess the changes in enamel roughness parameters before and after stripping with an oscillating diamond strip system.MethodsSound premolars extracted for orthodontic reasons were embedded up to their cervical area in a polyvinylsiloxane putty, creating four groups of four teeth with three interproximal areas each (mesial/distal). The...

Prediction of unerupted canines and premolars in a Syrian sample

Background The current study aimed to evaluate the applicability of the methods of Moyers and of Tanaka and Johnston to estimate the mesiodistal widths of permanent canines and premolars in Syrian individuals, to determine whether the predicting equations differ by sex, and to develop more accurate regression equations using various teeth groups as predictors. Methods A total of...

A 5-year longitudinal study of survival rate and periodontal parameter changes at sites of dilacerated maxillary central incisors

Background Although dental dilaceration disinclusion is an accepted treatment modality, few studies have evaluated the prognosis for dilacerated maxillary incisors and changes in clinical periodontal parameters still need to be demonstrated. The objectives of this study were to evaluate the prognosis and changes in clinical attachment level (CAL), probing depth (PD), and soft...

A 15-month evaluation of bond failures of orthodontic brackets bonded with direct versus indirect bonding technique: a clinical trial

Background The purpose of this clinical longitudinal study was to investigate the effectiveness of indirect bonding technique evaluating the number of bond failures which occurred during treatment. Methods Fifty-two patients were selected and divided into two groups: group A (33 patients) bonded with the direct technique and group B (19 patients) bonded with the indirect...

Stability of class II subdivision malocclusion treatment with 3 and 4 premolar extractions

Background The purpose of this study was to compare the occlusal stability of class II subdivision malocclusion treatment with 3 and 4 first premolar extractions. A sample of 156 dental casts from 52 patients with class II subdivision malocclusion was divided into two groups according to the extraction protocol. Group 1 comprised 24 patients treated with 3 premolar extractions...

Comparison of in vivo 3D cone-beam computed tomography tooth volume measurement protocols

Background The objective of this study is to analyze a set of previously developed and proposed image segmentation protocols for precision in both intra- and inter-rater reliability for in vivo tooth volume measurements using cone-beam computed tomography (CBCT) images. Methods Six 3D volume segmentation procedures were proposed and tested for intra- and inter-rater reliability...

Effects of twin-block appliance on the anatomy of pharyngeal airway passage (PAP) in class II malocclusion subjects

Background The use of functional appliances for the correction of retrognathic mandible is very common in orthodontics. Similar appliances known as oral appliances are also frequently used in adults for the treatment of mild to moderate obstructive sleep apnea (OSA). Many studies have reported improvement of pharyngeal airway passage (PAP) dimensions following functional...

Effect of orthodontic forces on cytokine and receptor levels in gingival crevicular fluid: a systematic review

This systematic review aimed to generate evidence on role of potent markers of inflammation [cytokines, chemokines, their associated receptors and antagonists] following the application of orthodontic forces. Subsequent to registration with PROSPERO, literature search followed a predetermined search strategy to key databases along with hand search (HS). Seventy-seven articles...

Effects of laser-assisted cosmetic smile lift gingivectomy on postoperative bleeding and pain in fixed orthodontic patients: a controlled clinical trial

Background and objective Diode lasers are becoming popular in gingival treatment following orthodontic treatments. Despite their merit and clinical implications, postoperative pain and bleeding after surgery with diode lasers are not assessed except in few controversial studies. Method This controlled clinical trial was conducted on 30 healthy orthodontic patients aged 17–29...

Clinical effectiveness of chin cup treatment for the management of Class III malocclusion in pre-pubertal patients: a systematic review and meta-analysis

Background Chin cup is regarded as the oldest orthodontic appliance for the management of Class III malocclusion. To assess its clinical effectiveness in pre-pubertal patients, a meta-analysis on specific cephalometric values is attempted. Methods Detailed electronic and hand searches with no restrictions were performed up to July 2014. Only randomized controlled trials (RCTs...

Optimal parameters for final position of teeth in space closure in case of a missing upper lateral incisor

Background The aim of this study was to provide clinical indications for the correct management of appliances in space closure treatment of patients with agenesis of the upper lateral incisors. Methods Virtual setup for space closure was performed in 30 patients with upper lateral incisor agenesis. Tip, torque and in-out values were measured and compared with those of previous...

Third molars and dental crowding: different opinions of orthodontists and oral surgeons among Italian practitioners

Background The role of third molars as a cause of incisor crowding, especially in the lower arch, continues to be controversial. The aim of this work is to compare opinions of Italian oral surgeons and orthodontists on this topic. Methods One hundred ninety-three Italian practitioners of the Society of Orthodontics (SIDO) and the Italian Society of Oral Surgery (SICOI) were asked...

Analysis of pain level in cases treated with Invisalign aligner: comparison with fixed edgewise appliance therapy

Background The aim of this study was to evaluate and compare the difference in the level of pain using the visual analog scale (VAS) between cases treated with the edgewise appliance and Invisalign. In addition, the cause of pain and discomfort in the Invisalign cases was identified. Methods The sample consisted of 145 cases for the edgewise group (EG; n = 55), Invisalign group...