Ingrid Rudzki-Janson

Learn More
In order to obtain an overlay-free assessment of dental structures for resorption and ankylosis diagnostics, conebeam computed tomography (CBCT) is being employed more and more often in orthodontics alongside dental CT. The aim of this study was to investigate the quality and accuracy of CBCT in the imaging of dental structures and to compare it with the(More)
Since the early 20th century, functional appliance therapy has been a significant part of orthodontic treatment, especially in Europe, where functional appliances have been used to treat many malocclusions, including some skeletal discrepancies. Although the success of functional appliance therapy as reported in numerous short-term studies from 1930 to 1975(More)
INTRODUCTION Demineralization around the bracket is an undesired side effect of orthodontic treatment. The aim of this in-vitro study was to evaluate the efficacy of 5 bonding agents to prevent enamel demineralization. Two quantification methods were used. METHODS Eighty-five extracted teeth were randomly allocated to 5 groups: (1) Transbond Plus SEP and(More)
The goal of this study was to analyze the validity and prediction accuracy of a newly-developed procedure for three-dimensional soft tissue prediction based on Finite Element Method, and to compare the results with prediction produced using an existing two-dimensional prediction program (Dentofacial Planner Plus™). In twelve patients who underwent combined(More)
INTRODUCTION Our aim in this randomized clinical trial was to compare the failure rates of orthodontic brackets by using 2 self-etching primers (SEPs) (Transbond Plus [3M Unitek, Seefeld, Germany] and Clearfil Protect Bond [Kuraray Medical, Okayama, Japan]) with a split-mouth design. Additionally, the effect of Clearfil Protect Bond was investigated(More)
The objective of this prospective, comparative study was to evaluate the potential of allowing immediate (within 72 hours) loading of palatal implants used for maximum orthodontic anchorage. This is in contrast to the standard protocol calling for a healing period of 12 weeks. Sixteen patients with a mean age of 14.22 ± 1.37 years for whom orthodontic(More)
OBJECTIVE An analysis of the distribution of stresses at the juvenile and adult cranial base after implementation of a rapid palatal suture expansion was the goal of this study. Of particular interest were stresses occurring near the cranial foramina containing vulnerable structures. MATERIALS AND METHODS The stresses were simulated and analyzed using a(More)
Eight banded teeth on two human specimens (9 years, male; 19 years, female) were analyzed regarding the fit of the orthodontic bands and peridontal reactions. Five teeth (three molars, two premolars) were evaluated histologically in the horizontal plane and three (one molar, two premolars) in the sagittal plane using the micro-section method according to(More)
OBJECTIVE To carry out a comparative biomechanical analysis of maxillary low force expansion using the quadhelix appliance in cleft and noncleft patients. We also intended to determine whether a sufficient transverse skeletal effect could be achieved among cleft patients using the quadhelix appliance. MATERIALS AND METHODS Three finite element models of(More)