Use of Elastic Tapes in Presurgical Nasoalveolar Molding: A Case Report

Objective:One of the objectives of presurgical nasoalveolar molding (PNAM) is to bring the lips together in order to decrease the severity of the deformity before surgery. This case report aims to present PNAM therapy of an infant with bilateral cleft lip and primary palate using prefabricated elastic tapes.Materials and Method:A 3-day-old baby girl with bilateral cleft lip and alveolus was referred to our clinic. Her extraoral examination revealed a deviated and protruded premaxilla, a deficient columella, a short prolabium, depressed alar cartilages, and separated lip segments. A PNAM appliance combined with dynamic tapes (DynaCleft, Canica Design Inc, Ontario, Canada) was delivered the same day.Results:After 3 months of PNAM therapy the premaxillary deviation was corrected, the columella and prolabium were lengthened, and projection and symmetry of the nose were obtained. The horizontal elastic tapes decreased the muscle tension and brought the lips together.Conclusion:Dynamic bands are very effective because of the active force derived from their elastic components and thus can be recommended during PNAM therapy as an alternative to conventional tapes

Treatment of Class II Malocclusion with Prefabricated Elastomeric Appliance: Case Report

Aim:In this case report, orthodontic treatment of an 11 year-old girl with Class II division 1 malocclusion with minor rotations and diastemas using prefabricated elastomeric appliance (Multi-P) is described

Usage of Titanium Molybdenum Alloy Wires in Nasal Molding: A Case Report

The purpose of this case report is to present the nasoalveolar molding treatment (NAM) of an infant with complete unilateral cleft lip using a nasal stent with conventional configuration made of 0.32-inch titanium molybdenum alloy (TMA). An additional nasal stent with the same configuration was constructed of stainless steel wire, and the force application by the same activation was measured. In patients with cleft lip who benefit from NAM therapy but cannot come regularly to the weekly appointments, nasal stents made of TMA may be recommended due to lighter and continuous force application

Reliability of Measurements on Plaster and Digital Models of Patients with a Cleft Lip and Palate

Objective:The purpose of this study was to determine (1) the more and less reliable measurements/methods and (2) the influence of knowledge and skill on the inter- examiner, intra-examiner, and inter-method reliability of nasolabial measurements on plaster casts and three dimensional (3D) stereophotogrammetric images of casts in infants with an unrepaired unilateral cleft lip and palate (UUCLP).Methods:Preoperative extraoral plaster casts from 42 patients with UUCLP were measured with a digital caliper, and the image acquisition of casts was performed with the 3dMDface stereophotogrammetry system (3dMD, Atlanta, GA). Two examiners (one postgraduate student, one lecturer) evaluated 19 nasolabial measurements in two separate sessions.Results:Intra-rater, inter-rater, and inter-method reliability was lower in measurements of nasal, philtral, and nasal floor width. Almost all of the interclass correlation coefficients (ICC) for measurements performed by the lecturer were above 0.75, whereas the intra-examiner reliability of some measurements performed by the postgraduate student showed low ICC (<0.75).Conclusion:Measurements of curving slopes, such as nasal width, of small dimensions, such as nostril floor width, and deformity-affected anatomic parts, such as philtrum width, presented a low reliability. Measurements on 3D images showed a higher reliability compared to plaster model measurements performed by the postgraduate student. Therefore, it may be recommended to use 3D digital images of infants with CLP for nasolabial measurements especially if performed in postgraduate settings

Shear Bond Strength Comparison of Three Different Orthodontic Adhesives

Aim:The purpose of this study was to evaluate and compare the shear bond strengths (SBS) and fracture mode of three different orthodontic adhesive systems.Materials and Methods:Sixty bovine permanent mandibular incisor teeth were randomly divided into three groups of 20. All teeth were etched with 37 per cent phosphoric acid for 15 seconds, rinsed and air dried. Mandibular incisor brackets were bonded to the prepared enamel using three different adhesives (Eagle Bond, Transbond XT, and Resino-mer/OS+) and light cured. Bonded samples were thermocycled. Shear forces were applied to samples with a testing machine. Data obtained in megapascals were analyzed with descriptive statistics and with ANOVA and post Hoc Tukey multiple comparison test. The adhesive fracture site was classified with the Adhesive Remnant Index (ARI).Results:SBS of Re-sinomer/OS+ was found to be statistically significantly greater than Eagle Bond and Transbond XT. The comparisons of the ARI scores between the three groups indicated that bracket failure mode was significantly different among groups (P<0.001). Bond failure occurred mostly at the adhesive-enamel interface for Resi-nomer/OS+, whereas in Eagle Bond and Transbond XT the failure site was within the adhesive.Conclusion:Resino-mer/OS+ exhibited a significantly higher SBS compared to the other two products; however enamel fractures were observed during debonding. Therefore, clinicians should be careful when removing bonded brackets with this adhesive

Orthodontic bonding to acid- or laser-etched prebleached enamel

WOS: 000320910000006PubMed ID: 23814709Objective: Bonding forces of brackets to enamel surfaces may be affected by the procedures used for bleaching and enamel etching. The aim of this study was to investigate the bonding strength of orthodontic brackets to laser-etched surfaces of bleached teeth. Methods: In a nonbleached control group, acid etching (group A) or Er:YAG laser application (group B) was performed prior to bracket bonding (n = 13 in each group). Similar surface treatments were performed at 1 day (groups C and D; n = 13 in each subgroup) or at 3 weeks (groups E and F; n = 13 in each subgroup) after 38% hydrogen peroxide bleaching in another set of teeth. The specimens were debonded after thermocycling. Results: Laser etching of bleached teeth resulted in clinically unacceptable low bonding strength. In the case of acid-etched teeth, waiting for 3 weeks before attachment of brackets to the bleached surfaces resulted in similar, but not identical, bond strength values as those obtained with nonbleached surfaces. However, in the laser-etched groups, the bonding strength after 3 weeks was the same as that for the nonbleached group. Conclusions: When teeth bleached with 38% hydrogen peroxide are meant to be bonded immediately, acid etching is preferable

Interdisciplinary treatment of a patient with bilateral cleft lip and palate and congenitally missing and transposed teeth

2014 IEEE Global Communications Conference, GLOBECOM 2014 -- 8 December 2014 through 12 December 2014 -- 110905The comprehensive treatment of a patient with cleft lip and palate requires an interdisciplinary approach for functional and esthetic outcomes. A 20-year-old woman with bilateral cleft lip and palate had a chief complaint of unesthetic appearance of her teeth and the presence of oronasal fistulae. Her clinical and radiographic evaluation showed a dolichofacial growth pattern, a Class II skeletal relationship with retroclined maxillary central incisors, 5 mm of negative overjet, maxillary constriction, maxillary and mandibular crowding, congenitally missing maxillary right incisors and left lateral incisor, and a transposed maxillary left canine. Her treatment plan included the extraction of 3 premolars, maxillary expansion, segmental maxillary osteotomy, repair of the oronasal fistulae, rhinoplasty, periodontal surgery, and prosthodontic rehabilitation. To obtain a better occlusion and reduce the dimensions of the fistulae, orthognathic surgery comprising linear and rotational movements of the maxillary segments (premaxilla, right and left maxillary alveolar segments) in all 3 axes was planned by performing 3-dimensional virtual surgery on 3-dimensional computerized tomography. At the end of the interdisciplinary treatment, a functional occlusion, a harmonious profile, and patient satisfaction were achieved. Posttreatment records after 1 year showed stable results