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Results for “Tooth Movement Techniques”

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At least 127 records · Page 7Linked to original sources

PubMed2005

[Controlled orthodontic extrusion with subsequent implantation].

Controlled orthodontic extrusion constitutes a non-surgical technique to increase alveolar bone material. Prosthetic reconstruction alone frequently does not achieve sufficient long-term aesthetics. An adequate implantation bed is indispensable to meet aesthetic demands. Controlled orthodontic extrusion represents an alternative to pre-implantological augmentation of the vertically reduced alveolar process and its soft tissue.

Adult↗

PubMed1996

An evaluation of root resorption incident to orthodontic intrusion.

A new radiographic method was developed for measuring changes in root length. With this technique, orthodontic intrusion was investigated as a potential cause of apical root resorption of maxillary incisors. The experimental group consisted of 17 patients with excessive overbite who were treated with a Burstone-type intrusion arch, which delivered a low level of force (about 15 gm per tooth). A control group was made up of 17 patients in full-arch fixed appliances who were randomly selected. After a period of approximately 4 months, the intrusion group had only slightly more root resorption than the controls, 0.6 mm versus 0.2 mm (statistically significant difference). Intrusion measured at the center of resistance of the central incisor averaged 1.9 mm. The amount of resorption was not correlated with the amount of intrusion. A weak correlation, r = 0.45, was found between resorption and movement of the apex (i.e., in addition to intrusion, there was often palatal root movement). Results of this study seem to indicate that intrusion with low forces can be effective in reducing overbite while causing only a negligible amount of apical root resorption.

Adolescent↗

PubMed2005

Patients perception of recovery after exposure of impacted teeth: a comparison of closed- versus open-eruption techniques.

PURPOSE: This prospective study compared the patients perception of immediate postoperative recovery after surgical exposure of impacted teeth, treated with a closed-eruption versus an open-eruption surgical technique. PATIENTS AND METHODS: Sixty patients (41 females and 19 males; mean age, 15.4 +/- 2.8 years) were given a Health-Related Quality of Life (HRQOL) questionnaire to be completed each postoperative day (POD) for 7 days. The questionnaire was designed to assess the patients perception of recovery regarding pain, oral function, general activity measures, and other parameters. The impact of possible predictor variables, such as age, gender, length of surgical procedure, tooth location, height of impaction, and the need for bone removal, was assessed. RESULTS: Substantial impairment and recovery time of pain and analgesic consumption, oral function (ability to eat and enjoy food, swallowing and mouth opening), and food accumulation were longer after an open-eruption exposure. No differences were recorded concerning general activity. Palatal impaction and the need for bone removal resulted in delayed recovery after exposure with an open-eruption technique. CONCLUSIONS: The immediate postoperative recovery was longer and more substantially impaired after open-eruption versus closed-eruption surgical techniques. The present study provides information to patients and clinicians assisting them in choosing the most appropriate surgical modality in relation to quality of health parameters.

Activities of Daily Living↗

PubMed1991

Unerupted premolars--an alternative approach.

These two cases illustrate variations of an alternative technique for moving unerupted teeth into the mouth. Previously described techniques may damage the tooth or the periodontium and the regular adjustments required can be uncomfortable and are unpleasant for the patient and the operator. The method described provides a stress free alternative which is readily acceptable to patients. Adjustments are rarely needed, but if required they usually involve repositioning a magnet in the removable appliance, a procedure carried out simply by the operator or technician using cold cure acrylic.

Adolescent↗

PubMed1990

[Orthodontic uprighting mandibular second molars].

Two cases of impaction of the mandibular second molar treated by means of orthodontic techniques, were presented. It takes about 6 to 8 months for uprighting mandibular second molar. There is no significant difference in the uprighting times between in the case of extraction of the third molar or not. We consider that the corticotomy of the diatal part of the mandibular second molar shortens the uprighting times of the mandibular second molar. Treatment results of both cases were favorable at 2 years after uprighting of the mandibular second molar.

Humans↗

PubMed2006

Aesthetic changes with four anterior units.

Cosmetic dentistry has evolved with the advent of more robust porcelain materials and ever-stronger bonding agents. This series of three articles aims to provide a practical overview of what is now possible both functionally and cosmetically from the preparation of a small number of teeth, through a whole smile, to full mouth rehabilitation. A complete diagnosis is the starting point to planning any cosmetic or functional changes. Guidance is given on the techniques used but adequate training must be considered essential before embarking upon modification in occlusal schemes or even minor adjustments in smile design. Conservative use of porcelain laminate veneers can result in significant aesthetic improvements to a patient's smile and it is not always necessary to prepare all the teeth visible in a smile.

Cementation↗

PubMed2003

Management of alveolar clefts using dento-osseous transport distraction osteogenesis.

This article evaluates the usage of distraction osteogenesis (DO) in the treatment of cleft alveoli. The procedure was carried out on eight alveolar clefts of five patients between the ages of 17 and 25 years. Three patients had bilateral alveolar clefts (BAC) and two patients had unilateral alveolar clefts (UAC). DO was carried out bilateral to the palatal segments for the BAC patients and unilateral to the lesser segment for the UAC patients. A custom-made tooth-borne distractor was used. The average amount of distraction was eight mm (range, 5-11.5 mm). The average amount of distal movement of the anchorage teeth was 0.8 mm (range, 0-2 mm). The average amount of inclination changes of the transport segments and anchorage teeth was 7.6 degrees (range, 2-17.5 degrees) and 3.3 degrees (range, 0-9 degrees), respectively. Two important problems were observed attributable to the method. First, the transport segment was docked in a more superior position at the end of distraction process. This undesirable movement also changed the inclination of the teeth in the transport segment and increased tooth tipping. Removing the device in the second week of the consolidation period and retracting the segment to its ideal position orthodontically solved these problems. Second, the bony defect on the nasal side of the alveolar cleft could not be completely closed. This method for repairing small or large alveolar clefts is a simple, cost-effective, and useful treatment option. However, repairing the alveolar cleft without grafts seems to be impossible when using a tooth-borne device.

Adolescent↗

PubMed2005

Adhesive fragment reattachment after orthodontic extrusion: a case report.

In the treatment of crown fractures, adhesive fragment reattachment provides a good alternative to other restorative techniques, offering several advantages. The present paper reports a case in which the treatment of a cervical crown fracture was accomplished by reattaching the tooth fragment with a flowable resin composite. Orthodontic root extrusion was performed with a modified Hawley appliance prior to fragment reattachment. The clinical and radiographic results after 2.5 years were successful.

Bisphenol A-Glycidyl Methacrylate↗

PubMed1999

Piggyback archwires.

Commonly, clinicians' principal tool in the alignment phase of orthodontic mechanotherapy is the nickel-titanium wire. During the course of orthodontic treatment, however, there are times when some segments of the dental arch require flexible wires, while the rest would benefit from rigid wires. In this report, we describe a technique where both of these needs are satisfied simultaneously. Specifically, a segment of nickel-titanium wire is piggybacked onto a stainless steel wire in regions where flexibility is desired. This method eliminates the problems associated with the activation, de-activation forces created along a continuous archwire and might be more economical. Clinical pictures illustrate the point.

Adolescent↗

PubMed2001

Bracket positioning and resets: five steps to align crowns and roots consistently.

Orthodontists strive for accurate bracket positioning because it makes achieving a superior occlusion easier. Whether one uses a direct or an indirect bonding technique, the initial appliance placement typically includes some bracket-positioning errors. The clinician either corrects these errors during treatment or tediously repeats archwire bends to compensate for the misplaced brackets. The clinician should assess bracket positioning early in treatment by clinical and radiographic evaluations and then correct all positioning errors during a single dedicated reset appointment. This article describes a 5-step protocol for assessing and correcting bracket-positioning errors.

Humans↗

PubMed1985

Autotransplantation of teeth.

A modified technique for the transplantation of teeth from one region of the mouth to another and for the transalveolar transplantation of impacted teeth to more favourable positions is presented. The surgical method is such that there is minimal damage to the tooth. To achieve this a substantial amount of bone may need to be removed. The fixation method is based on an orthodontic appliance and has the character of stabilization more than firm fixation. In this way it is possible to transplant teeth, even to difficult positions in adults, with very good results.

Bicuspid↗

PubMedDate not supplied

Immediate loading of an implant following implant site development using forced eruption: a case report.

In restoring periodontally involved hopeless teeth, implant treatment has been widely used with combinations of various grafting techniques or guided bone regeneration. Instead of traditional surgical procedures, forced tooth eruption may be used successfully for implant site development. In this case, the authors orthodontically erupted a hopeless central incisor with an angular bony defect. Subsequently, they placed an implant immediately after tooth extraction and immediately loaded it with a temporary resin restoration.

Adult↗

PubMed1996

Initial stress differences between tipping and torque movements. A three-dimensional finite element analysis.

The aim of this study was to analyse the distribution of the stress on dental and periodontal structures when a simple tipping dental movement or torque movement is produced. A tridimensional computer model based on finite element techniques was used for this purpose. The model of the lower canine was constructed on the average anatomical morphology and 396 isoparametric elements were considered. The three principal stresses (maximum, minimum and intermediate) and Von Mises stress were determined at the root, alveolar bone and periodontal ligament (PDL). It was observed how the distribution of stress is not the same for the three structures studied. In all loading cases for bucco-lingually directed forces, the three principal stresses were very similar in the PDL. The dental apex and bony alveolar crest zones are the areas that suffer the greatest stress when these kind of movements are produced.

Alveolar Process↗

PubMed2004

A new approach using the surgical extrusion procedure as an alternative for the reestablishment of biologic width.

A modification of the surgical extrusion technique to treat fractured teeth was realized as an alternative periodontal therapy to avoid ostectomy following orthodontic extrusion of teeth with their biologic widths compromised by different etiologic involvements. After delicate luxation and arrested avulsion, the teeth were coronally positioned to allow room for a new biologic width. Clinical and radiographic monitoring showed the ability of the periodontium to adapt function and esthetic recovery. The advantages and disadvantages of this therapeutic procedure for resolution of a periodontal involvement are presented.

Bicuspid↗

PubMed1984

Root extrusion. Rationale and techniques.

The root extrusion techniques are easily mastered and are within the realm of every general practitioner. They can be applied in various situations in which restoration is very difficult or impossible. The dentist must first decide whether or not elevating the root up to 4 mm will help treatment. If the answer is yes, then many different methods can be used to accomplish this goal. Teeth that were formerly extracted can now be saved and restored routinely, leading to a functional and esthetically pleasing result.

Dental Caries↗

PubMed2006

Extraction treatment using Invisalign Technique.

The Invisalign method is gaining an increasing interest as an alternative treatment option in adult patients and in difficult orthodontic cases. The aim of this work is to show a class II malocclusion with severe crowding in the upper and lower arches treated with the extraction of the upper first premolars performed by means of Invisalign. The alignment phase was successfully completed but the space closure achieved with crown tipping and without correct root inclination making a further fixed appliance phase necessary.

Adult↗

PubMed2005

Periodontal plastic surgical indications in the restorative practice.

A variety of advanced surgical techniques are available today for the treatment of soft-tissue complications in the restorative patient. Gingival recession and lack of attached gingiva can complicate delicate esthetic and prosthetic treatment. The restorative office must be able to critically evaluate the demands of the case and offer the patient options for correction of these advanced conditions. The ability to counsel in an informed way-outside the restorative arena-allows dentists to demonstrate their true commitment to the best outcome for the person they are dedicated to serve, the patient.

Connective Tissue↗

PubMed1980

Orthodontic extrusion: its use in restorative dentistry.

The technique described in this study demonstrates that the use of orthodontic extrusion can provide an alternative to extraction and extensive periodontal surgery. Selection of patients is an important aspect when considering this type of treatment. The crown-root ratio, as well as the root anatomy, if inadequate, may render this type of treatment inappropriate. The concept of a biologic width is discussed, and its application to forced eruption is described.

Adolescent↗