Michael Schauseil

Kieferorthopädie Dr. Schauseil, Düsseldorf, Germany

Purpose: The aim of this study was to assess the effects of tooth/bone-borne (hybrid) and tooth-borne (TB) surgically assisted rapid maxillary expansion (SARME) on the width of the nasal soft and hard tissue. Patients and methods: Twenty skeletally mature patients (nine males and 11 females; mean age 19.4 years) with transverse maxillary hypoplasia...

Background: The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding, using Invisalign aligner and interproximal enamel reduction (IER), and changes in the volume of interradicular bone. Methods: A total of 60 cone-beam computed tomography (CBCT) scans from 30 adult patients (28 wo...

Objective: The objective of this split-mouth trial was to investigate the influence of photobiomodulation therapy (PBMT) on adjuvant treatment of gingivitis induced by multi-bracket appliances, after bracket debonding and professional tooth cleaning. Materials and methods: Thirteen patients (mean age 16.15 years; standard deviation ±2.12 years)...

Objective: This study investigated temperature increases in dental pulp resulting from laser-assisted debonding of ceramic brackets using a 445-nm diode laser. Materials and methods: Eighteen ceramic brackets were bonded in standardized manner to 18 caries-free human third molars. Pulpal fluid circulation was simulated by pumping distilled water...

Objectives: The aim of this study was to measure the effect of irradiation with a novel 445-nm diode laser on the shear bond strength (SBS) of ceramic brackets before debonding. Materials and methods: Thirty ceramic brackets (In-Ovation(®) C, GAC) were bonded in standard manner to the planed and polished buccal enamel surfaces of 30 caries-free...

Objectives: This study determined the influence of irradiation on aesthetic ceramic brackets with a novel 445-nm diode laser prior to debonding on the bracket failure mode. Materials and methods: Thirty ceramic brackets (In-Ovation® C, GAC) were standard-bonded to the oral and buccal planed and polished enamel surfaces of 15 caries-free human 3r...

Background To determine the shear bond strength and adhesive remnant index of a new premixed self-etching primer and adhesive (Tectosan, BonaDent, Germany) for orthodontic appliances in comparison to a reference total-etch system Transbond XT. Methods Bovine incisors were embedded in resin and randomly divided into two groups of 16 samples each. B...

Background The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding using Invisalign and interproximal enamel reduction (IER) and changes in the bone volume. MethodsA total of 60 digital cone beam computed tomography (CBCT) scans from 30 patients (28 women, two men; 30 CBCTs pretreatm...

Objective: The aim of this in vitro study was to compare the shear bond strength (SBS) and Adhesive Remnant Index (ARI) scores of two self-etching no-mix adhesives (Prompt L-Pop™ and Scotchbond™) for orthodontic appliances to the commonly used total etch system Transbond XT™ (in combination with phosphoric acid). Materials and methods: In all, 6...

Purpose: The objective of this 2-arm, parallel, single-center trial was to compare the skeletal, dental, and periodontal effects of tooth-borne (TB) and hybrid devices in surgically assisted rapid maxillary expansion (SARME). Materials and methods: Twenty consecutive patients (9 male and 11 female) with skeletal transverse maxillary deficiency s...

AimThe aim of this study was to investigate possible correlation of specific skeletal or dental class in children and adolescents with clinical signs of temporomandibular dysfunction (TMD) with the severity of internal derangement (ID) of the temporomandibular joint. Materials and methodsBased on MRI images, the ID of 232 juvenile temporomandibular...

Background: The purpose of this study was to analyze pharyngeal airflow using computational fluid dynamics (CFD) in obstructive sleep apnea (OSA) patients before and after maxillomandibular advancement (MMA). Methods: Digitized pharyngeal airway models of 19 obstructive sleep apnea patients were generated from cone beam computed tomography scans pr...

Objective. The aim of this in vitro study was to determine the shear bond strength (SBS) and adhesive remnant index (ARI) score of two self-etching no-mix adhesives (iBond ? and Scotchbond ? ) on different prosthetic surfaces and enamel, in comparison with the commonly used total etch system Transbond XT ? . Materials and Methods . A total of 270 s...

OBJECTIVES: To analyse if Hybrid-RME (synonym: „Hybrid-Hyrax“) has different effects on skeletal, dental and periodontal aspects when compared with those of Hyrax-RME or Hyrax-SARME. METHODS: In this retrospective multicentre-study 28 patients with a severe nasomaxillary constriction were treated either with a Hyrax-type RME (6 patients, 13.92 ± 0...

Surgical correction of skeletal maxillary retroposition is often associated with changes in the morphology of the nose. Unwanted alar flaring of the nose is observed in many cases. The aim of the present study was therefore to investigate the influence of surgical advancement of the maxilla on changes in the soft-tissue morphology of the nose. Havi...

Conventional dental-borne rapid maxillary expansion (RME) leads to a widening of the airways, followed by improved nasal breathing. Although combined skeletal-dental appliances are nowadays being inserted increasingly often and provide a force at the center of resistance in the nasomaxillary complex, no study exists so far that shows whether this t...

Permanent retention is currently the method of choice to stabilize orthodontic treatment results. Frequently, permanent retention schemes are adopted to prevent posttreatment changes in the esthetic zone of the anterior teeth. With increasingly prolonged times of intraoral device use, and retention to be provided in the maxilla despite limited spac...

The objective of this study was to determine whether the addition of microsilver or nanosilver particles to an orthodontic primer affects shear bond strength (SBS) and bracket/adhesive failure. Bovine incisors were randomly divided into six groups with 16 specimens in each: In group 1 (control), brackets were bonded with Transbond™ XT primer. In th...

OBJECTIVES:To test the applicability, accuracy, precision, and reproducibility of various 3D superimposition techniques for radiographic data, transformed to triangulated surface data. METHODS:Five superimposition techniques (3P: three-point registration; AC: anterior cranial base; AC + F: anterior cranial base + foramen magnum; BZ: both zygomatic...

Einleitung: Einflüsse der Gaumennahterweiterung auf die Nase wurden nachgewiesen und publiziert. Neben den konventionellen Bauarten zählen heutzutage auch kombiniert dentalskelettal abgestützte Mechaniken (Hybrid-GNE) zum kieferorthopädischen Standard. Die Wirkung der Hybrid-GNE auf die Weichteilmorphologie der Erwachsenen-Nase wurde bis heute noch...

Introduction: Rapid maxillary expansion (RME) is a common technique to improve the dental and skeletal transverse width in cases of constricted maxillary arches. Although retention after RME has been widely examined, there is still no clear statement about the minimal retention time in postpubertal patients and many practitioners have retention co...