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At least 307 records · Page 17Linked to original sources
PubMed1994

Extreme transmigration of mandibular cuspid: report of two cases.

Transmigration of impacted mandibular cuspid to the opposite side seems unhypothetical due to the presence of symphyseal cartilage. Two such rare cases of extreme transmigration were radiographically discovered when patient reported for orthodontic therapy.

Child↗
PubMed1994

Tooth movement following third molar removal.

The mandibular dental arches of 45 young adults (mean age = 24.3 years) were analyzed by measuring study casts taken immediately before and twelve weeks after the removal of impacted third molar teeth. Arch length and width were measured at predetermined points on the study casts. The results showed significant buccal movement of mandibular second molar teeth following surgery (p < 0.01). Bilateral mesioangular impactions were associated with larger increases in mandibular arch width following surgery than unilateral mesioangular impactions or other classes of impaction (p < 0.05). The greatest amount of tooth movement was observed in cases where mandibular second molars had a pre-operative lingual inclination. It is hypothesised that mesioangularly impacted mandibular third molars can produce sufficient force to displace the adjacent second molar teeth in a lingual direction and when the adjacent third molar is removed this movement is reversed by functional forces.

Adolescent↗
PubMed1993

Direct bonded space maintainers.

The aim of this study was to evaluate clinically a bonded space maintainer, which would reduce chair-side time and cost. Sixty appliances were fabricated from 0.7 mm stainless steel round wire and bonded using light-cured composite to the two teeth adjacent to the site of extraction of a posterior primary tooth. Twenty males and sixteen females (age range 5-9-years-old) were selected from the Pedodontic clinic of the State University of Rio de Janeiro. The sixty space maintainers were divided into two groups according to the site in which they were placed: a) absent first primary molar and b) absent second primary molar. Impressions and study models were obtained prior to and 6 months after bonding the appliances. During this period only 8.3% of failures were observed, most of them from occlusal or facial trauma. Student t-test did not show statistically significant alterations in the sizes of the maintained spaces during the trial period.

Child↗
PubMed1993

Primary (early) alveolar bone grafting.

Early primary bone grafting is successful when performed as a separate operative procedure after lip repair and before palate closure. It must be done in conjunction with neonatal orthopedics. The graft is placed only after the alveolar segments have molded and grown to a butt joint. Minimal soft-tissue dissection of the alveolus and maxilla are performed. The graft stabilizes arch form, allows for tooth migration and eruption through its site, and decreases anterior and posterior crossbite. There is no facial growth attenuation, and a good foundation for further soft-tissue growth is provided.

Alveolar Process↗
PubMed1996

Orthodontic procedures improving periodontal prognosis.

The wide range of interrelations between orthodontics and periodontology shows that besides the preventive significance in the mixed dentition, another focal point is the comprehensive rehabilitation of periodontally affected patients. With increasing experience in the field of adult orthodontics, setting therapeutic limits becomes increasingly difficult. It is impossible in principle to define in exact metric terms the probing depth or attachment loss up to which orthodontic tooth movement is feasible. The fact is rather that the orthodontic-periodontal treatment goal can be defined only after evaluation in each individual finding a number of different factors: esthetics, function, risks of orthodontic tooth movement, biomechanical considerations, and periodontal prognosis.

Adolescent↗