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Biomedical subjects

Leopoldino Capelozza Filho

Publications and source records attributed to Leopoldino Capelozza Filho.

5 recordsLinked to original sources
PubMed2007

Maxillary canine--first premolar transposition.

Tooth transpositions present at a relatively low incidence in the world population and primarily affect maxillary canines and premolars. Treatment of this disturbance should take into account aspects such as facial pattern, age, malocclusion, tooth-size discrepancy, stage of eruption, and magnitude of the transposition. Mechanics for correction should be entirely individualized, reducing the risks and adverse effects. Practitioners often select simpler options, indicating extraction of permanent teeth, which is an irreversible procedure that may bring about damages to the patient. This study presents a case report and treatment of unilateral transposition of maxillary canine and premolar with repositioning of affected teeth to their respective normal positions.

Bicuspid↗
PubMed2004

In vivo effect of a resin-modified glass ionomer cement on enamel demineralization around orthodontic brackets.

Because the risk of dental caries increases with the use of orthodontic appliances and its control cannot depend only on the patient's self-care, this study evaluated the effect of a glass ionomer cement on reducing enamel demineralization around orthodontic brackets. Fourteen orthodontic patients were randomly divided into 2 groups of 7; they received 23 brackets fitted to their premolars, bonded with either Concise (3M Dental Products, St Paul, Minn), a composite resin (control group), or Fuji Ortho LC (GC America, Chicago, Ill), a resin-modified glass ionomer cement (experimental group). The volunteers lived in a city that has fluoridated water, but they did not use fluoridated dentifrices during the study. After 30 days, the teeth were extracted and longitudinally sectioned; in the enamel around the brackets, demineralization was assessed by cross-sectional microhardness. The determinations were made at the bracket edge cementing limits, and at occlusal and cervical points 100 and 200 microm away from them. In all of these positions, indentations were made at depths from 10 to 90 microm from enamel surface. Analysis of variance showed statistically significant effects for position, material, depth, and their interactions (P<.05). The Tukey test showed that the glass ionomer cement was statistically more efficient than the control, reducing enamel demineralization in all analyses (P<.05). The use of glass ionomer cement for bonding can be encouraged because it decreases the development of caries around orthodontic brackets.

Acrylic Resins↗
PubMed2004

Rapid maxillary expansion after secondary alveolar bone graft in a patient with bilateral cleft lip and palate.

OBJECTIVE: To verify the effects of rapid maxillary expansion performed after secondary alveolar bone graft in one patient. SETTING: Department of Orthodontics of the Hospital for Rehabilitation of Craniofacial Anomalies, University of Sao Paulo. PATIENT(S): The patient had bilateral cleft lip and palate, had already had a bone graft, and showed a relapsing maxillary constriction in need of correction. INTERVENTION: A fixed dental-mucous-bone-supported expander corrected the maxillary constriction. MAIN OUTCOME MEASURE(S): Measurements were obtained from dental casts, including transverse dimensions (intercanine distance [IC], interfirst premolar distance [IP], and interfirst molar distance [IM]) and measurements of the grafted area (interfirst premolar/central incisors [IPI] and interfirst premolar/canine [IPC]) to observe the changes. Clinical and radiographic analyses were done through direct view. RESULTS: The occlusal radiograph of the maxilla after expansion showed opening of the intermaxillary suture in the premaxillary area, which was clinically confirmed by the diastema between the maxillary central incisors. No radiographic alteration was observed in the grafted area. The transverse measurements of the dental casts (IC, IP, and IM) showed a significant increase. The measurements of the teeth adjacent to the grafted area, IPI and IPC, increased. CONCLUSIONS: The orthopedic effect of rapid maxillary expansion after bone graft was verified. Nevertheless, additional studies are necessary to define any side effects in patients submitted to bone graft.

Adolescent↗
PubMed2003

Treatment for predictable multidisciplinary implantology, orthodontics, and restorative dentistry.

Multidisciplinary treatment has improved the clinician's ability to restore patients with partial anodontia using implant, orthodontic, and restorative disciplines for aesthetics and functionality. When considering biological principles and--in particular--patient anxiety, the use of a combination treatment approach may facilitate predictable success. When partial anodontia is evident, the primary rehabilitative options include fixed prostheses, recontouring of teeth, or placement of a single implant. This article discusses treatment planning for restoration of partial bilateral anodontia and illustrates the implant placement in association with orthodontic and restorative procedures.

Adolescent↗