scholarly journals Success Rate of Second-Generation Palatal Implants

2009 ◽  
Vol 79 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Britta A. Jung ◽  
Martin Kunkel ◽  
Peter Göllner ◽  
Thomas Liechti ◽  
Heinrich Wehrbein
Keyword(s):  
Orthodontic Treatment ◽  
Second Generation ◽  
Implant Loosening ◽  
Posterior Teeth ◽  
Inflammatory Reactions ◽  
Healing Period ◽  
Median Region ◽  
Pendulum Appliance ◽  
Functional Loading ◽  
Transpalatal Arch

Abstract Objective: To analyze the clinical outcome of a prospective two-center study of second-generation palatal implants 6 months after functional loading. Material and Methods: From 2005 to 2006, 30 patients aged 12 to 41 years were included in the study. In all patients, orthodontic treatment required stationary anchorage. The palatal implants (Straumann, Basel, Switzerland) were placed in the median region of the anterior palate. Results: All implants were initially stable at the time of placement. However, two (6.7%) were lost during the unloaded healing period. The remaining 28 (93.3%) were subjected to functional loading after a mean healing period of 12 weeks. Typical signs of slight superficial inflammation were observed in the peri-implant mucosa (n = 28). During the orthodontic loading phase, the implants were equipped with either a modified pendulum appliance for distalization or a transpalatal arch for stationary anchorage to the posterior teeth. No implant loosening or loss was registered during the active treatment period. Conclusions: The failure rate of palatal implants of the second generation was low (6.7%). Slight inflammatory reactions of peri-implant tissue caused neither implant loss nor pain.

scholarly journals Class II Division 1 malocclusion treatment using TADs: Case report

2020 ◽  
Vol 67 (3) ◽  
pp. 159-164
Author(s):  
Tina Pajevic ◽  
Jovana Juloski ◽  
Marija Zivkovic
Keyword(s):  
Case Report ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Dental Arch ◽  
Class Ii Malocclusion ◽  
Posterior Teeth ◽  
Temporary Anchorage Devices ◽  
Division 1 ◽  
Incisor Retraction ◽  
Class Ii Division 1

Introduction. Orthodontic treatment of Class II Division 1 (II/1) malocclusions in adults can be challenging since skeletal effects are limited. Possible treatment options are orthodontic camouflage or orthognatic surgery, in severe cases. The aim of this paper was to present a successful management of Class II malocclusion in an adult patient using temporary anchorage devices (TADs). Case report. After detailed clinical examination, study models and cephalometric analysis, a 26 years old patient was diagnosed with Class II malocclusion, an overjet of 12 mm, congenitally missing tooth 41 and midline shifted to the right in upper dental arch. In prior orthodontic treatment, patient had upper premolars extracted. Posterior teeth in upper left quadrant were shifted mesially. The camouflage treatment was considered, using temporary anchorage devices (TADs) to distalize posterior teeth on the left side, and gain space for incisor retraction and midline correction in upper dental arch. Results. Using TADs as additional anchorage in anterior region and coil spring for molar distalization, the space was made for tooth 23, midline correction and incisor retraction. After 40 months, a satisfactory result was achieved, overjet and midline correction, class I canines occlusion and class II molar occlusion. Conclusion. Class II/1 malocclusion in adults can be successfully treated using TADs. The success depends on the severity of malocclusion and patient cooperation.

Uprighting Molars as an Adjunct to Restorative and Periodontal Treatment of Adults

1982 ◽  
Vol 9 (3) ◽  
pp. 122-128 ◽  
Author(s):  
J. F. Camilla Tulloch
Keyword(s):  
Orthodontic Treatment ◽  
Orthodontic Appliances ◽  
Prosthetic Design ◽  
Tissue Destruction ◽  
Periodontal Health ◽  
Posterior Teeth ◽  
Tooth Position ◽  
Plaque Control ◽  
Bacterial Plaque ◽  
Frequent Problem

The interrelationship between form, function and stomatologic health is unclear. However, tooth positions that prevent bacterial plaque removal may predispose towards periodontal disease. A frequent problem in adults is loss of posterior teeth with subsequent tip and drift of the molars. Occlusal trauma, if superimposed on gingival inflammation, can result in rapid tissue destruction. Therefore, an indication for orthodontic treatment is the restoration of normal axial inclination and tooth position so that bacterial plaque control may be effected. Simple orthodontic appliances may be used to restore the position of tipped molars. The benefits of orthodontic treatment, prior to the restoration of the posterior occlusion, are improvement in occlusal loading, improvement of periodontal health and simplification of prosthetic design and fabrication.

scholarly journals The influence of metallic ions from CoCr28Mo6 on the osteogenic differentiation and cytokine release of human osteoblasts

2015 ◽  
Vol 1 (1) ◽  
pp. 498-502 ◽  
Author(s):  
A Jonitz-Heincke ◽  
M Schröder ◽  
D Hansmann ◽  
S. Utzschneider ◽  
J.P. Kretzer ◽  
...  
Keyword(s):  
Gene Expression ◽  
Ion Concentration ◽  
Metallic Ions ◽  
Cytokine Release ◽  
Implant Loosening ◽  
Human Osteoblasts ◽  
Inflammatory Reactions ◽  
L 96 ◽  
Electric Potentials ◽  
Gene Expression Levels

AbstractInflammatory reactions associated with osteolysis and implant loosening can be the result of generated CoCr particles and the simultaneous release of ions, which are the consequence of wear at the articulating surfaces of metallic implants. By now, there is little knowledge about the influence of CoCr ions on the viability of human osteoblasts (hOB).Therefore, metallic ions were generated from solid CoCr28Mo6 alloys using electric potentials against hydrogen bridge electrodes. For the cell experiments, hOBs (n ≥ 4) in the third passage were used. Cells were cultured for 24 h before incubated with the generated ion solution in two different concentrations (100 µg/l and 500 µg/l in DMEM with 10 % FCS). Cells incubated without ions served as controls. After 48 h and 96 h cell viability was determined (WST-1 assay, live-dead-stainings). Additionally, gene expression levels of osteogenic markers and cytokines were analysed.A significant increase of metabolic activity and vital cells could be shown for both ion concentrations. Gene expression of alkaline phosphatase and Col1 was highly induced after 96 h for 100 µg/l whereas Col1 protein was significantly reduced on both time points (48 h: p=0.008 (100 µg/l, 500 µg/l); 96 h: p=0,029 (500 µg/l)) compared to the control. Additionally, MMP1 expression was decreased after 48 h and 96 h. IL6 mRNA was concentration-dependent increased after 48 h whereas a significant decrease could be shown for the highest ion concentration (p=0.029). Compared to the lower ion concentration, IL8, MCP1 (p=0.029) and TNF mRNA were clearly reduced for the higher ion solution after 96 h. Our results suggest that ions from CoCr28Mo6 alloys have only marginal effects on osteoblast viability whereas Col1 expression is reduced and cytokine release is induced. In further studies, the effects of metallic ions and particles from CoCr28Mo6 on other cells will be examined.

scholarly journals Oral Findings in a Typical Case of Achondroplasia

2003 ◽  
Vol 31 (3) ◽  
pp. 236-238 ◽  
Author(s):  
P Celenk ◽  
S Arici ◽  
C Celenk
Keyword(s):  
Orthodontic Treatment ◽  
Typical Case ◽  
Open Bite ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Posterior Teeth ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Clinical Interest

We report a 16-year-old boy who had all the typical manifestations of achondroplasia but also had a skeletal and dental class III malocclusion, a narrow maxilla, macroglossia and an open bite between the posterior teeth. The narrow maxilla and bilateral cross-bite were treated with rapid palatal expansion. The open bite and irregular teeth were corrected with fixed orthodontic treatment, taking account of the macroglossia. This case is of clinical interest since dental class III malocclusion, posterior open bite, macroglossia and benign migratory glossitis have not previously been reported in achondroplasia.

scholarly journals Anchorage condition during canine retraction using transpalatal arch with continuous and segmented arch mechanics

2015 ◽  
Vol 86 (3) ◽  
pp. 380-385 ◽  
Author(s):  
Adel Alhadlaq ◽  
Thamer Alkhadra ◽  
Tarek El-Bialy
Keyword(s):  
Orthodontic Treatment ◽  
The Other ◽  
Cephalometric Analysis ◽  
Forward Movement ◽  
Maxillary Canine ◽  
Premolar Extraction ◽  
Canine Retraction ◽  
Before And After ◽  
Point Data ◽  
Transpalatal Arch

ABSTRACT Objective:  To compare anchorage condition in cases in which transpalatal arch was used to enhance anchorage in both continuous and segmented arch techniques. Materials and Methods:  Twenty cases that required first premolar extraction for orthodontic treatment and transpalatal arch to enhance anchorage were included in this study. Ten cases were treated using the continuous arch technique, while the other 10 cases were treated using 0.019 × 0.025-inch TMA T-loops with posterior anchorage bend according to the Burstone and Marcotte description. Lateral cephalometric analysis of before and after canine retraction was performed using Ricketts analysis to measure the anteroposterior position of the upper first molar to the vertical line from the Pt point. Data were analyzed using an independent sample t-test. Results:  There was a statistically significant forward movement of the upper first molar in cases treated by continuous arch mechanics (4.5 ± 3.0 mm) compared with segmented arch mechanics (−0.7 ± 1.4 mm; P  =  .01). Conclusions:  The posterior anchorage bend to T-loop used to retract the maxillary canine can enhance anchorage during maxillary canine retraction.

Dentoalveolar and skeletal changes associated with the pendulum appliance followed by fixed orthodontic treatment

2006 ◽  
Vol 129 (4) ◽  
pp. 520-527 ◽  
Author(s):  
Fernanda Angelieri ◽  
Renato Rodrigues de Almeida ◽  
Marcio Rodrigues de Almeida ◽  
Acácio Fuziy
Keyword(s):  
Orthodontic Treatment ◽  
Skeletal Changes ◽  
Pendulum Appliance

Orthodontic Treatment of Skeletal Class II Adolescent with Anterior Open Bite using Mini-Screws and Modified Palatal Anchorage Plate

2015 ◽  
Vol 39 (2) ◽  
pp. 187-192 ◽  
Author(s):  
YA Kook ◽  
JH Park ◽  
Y Kim ◽  
CS Ahn ◽  
M Bayome
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
And Control

This article presents a non-extraction orthodontic treatment case using mini-screws and a modified palatal anchorage plate (MPAP) to intrude the maxillary posterior teeth, and distalize the whole arch dentition and control the extrusion of the maxillary posterior dentition during distalization.

scholarly journals Molar Buccal Tubes Front and Back Openings Dimensions and Torsional Play

2018 ◽  
Vol 30 (3) ◽  
pp. 32-39
Author(s):  
Hiyam J Al-Zubaidi ◽  
Akram F Alhuwaizi
Keyword(s):  
Orthodontic Treatment ◽  
In Vitro Study ◽  
Free Fall ◽  
Optical Microscope ◽  
The Other ◽  
Posterior Teeth ◽  
Adobe Photoshop ◽  
The Wire ◽  
Metal Block

Background/: Buccal tubes are orthodontic attachments used on the posterior teeth instead of bands, so it is important to focus on the effect of their properties on orthodontic treatment. The aims of the present in vitro study are to evaluate and compare the buccal tube front and back openings dimensions and the torsional play angle of six different brands. Materials and Methods: The samples consisted of Single bondable, non-convertible first molar buccal tubes from six brands supplied from six companies (Dentaurum, Forestadent, Ormco, 3M, American Orthodontic, A-Star). Regarding tube opening dimension, ten buccal tubes of each brand were examined by an optical microscope. Each tube was fixed during examination using synthetic mud and oriented for observation of the front and back slot openings. A picture was taken for both tube openings and the result appeared on the computer's screen where width and height measurements were made. While regarding torsional play angle, ten buccal tubes of each brand were used. Each tube was fixed on a metal block attached to a surveyor base. Then an L-shaped wire was inserted inside the front opening of the tube. Two photographs were taken, one with the wire in free fall position and the other with the wire elevated by a 10g weight with the same angle of shooting as the first photograph. Later, the two images were superimposed in Adobe Photoshop program, and an electronic MB-ruler Software was used to calculate the angle which represents the torsional play within each tube. The data were then statistically analyzed using ANOVA and LSD tests. Results: There are marked differences between measured tube dimensions and the manufacturer stated dimensions with the front tube openings being generally larger than the back opening dimensions. Furthermore, the torsional play angle was highest in A-Star and smallest in Ormco's tubes. This angle was significantly correlated to the height of the tube front opening. Conclusion: It can be concluded that tube dimension varies among different companies and effect greatly torsional play angle.

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