86,678 research outputs found
Estetica nella storia dell'arte e nella sensibilità contemporanea. Parte III : I paremetri in ortodonzia e chirurgia ortognatodontica.
No full textPreparazione ortodontica parziale nel trattamento combinato ortodontico-chirurgico del progenismo
No full text
Correlazioni cliniche fra cefalometria in proiezione postero-anteriore e rinomanometria attiva anteriore
No full textEstetica nella storia dell'arte e nella sensibilità contemporanea. Parte I: I canoni egizio e greco-romano.
No full textEstetica nella storia dell'arte e nella civiltà contemporanea. Parte II: Icanoni rinascimentali e moderni.
No full textFinishing effectiveness of different archwires using SmartClipTM self-ligating brackets: a clinical study.
No full textThe aim of this clinical prospective trial was to evaluate finishing effectiveness of stainless steel (SS) archwires versus titanium molybdenum alloy (TMA) archwires using SmartClipTM self-ligating brackets.Thirty-two patients were divided in two groups: a group of 21 (G1-SS) and a group of 12 (G2-TMA). The protocol consisted of two different finishing archwires coupled with self-ligating brackets: .019 × .025" SS archwires for G1-SS and .019 × .025" TMA archwires for G2-TMA. Lateral cephalometric radiographs obtained at the beginning (T1) and end (T2) of treatment were used to assess the changes in incisor inclination, and measurements of irregularity index (LII), interdental widths, arch length (AL) and arch depth (AD) were made on dental casts to investigate changes associated with crowding correction.No significant differences from T1 to T2 were found for incisors proclination and AL changes. Statistically significant differences were found for LII (higher decrease in G1-SS), maxillary AD (higher increase in G1-SS) and three interdental maxillary widths (higher in G1-SS).The statistically significant differences found were few and clinically negligible. Self-ligating brackets system coupled with .019 × .025" archwires showed good finishing effectiveness, but no clinically significant differences were found between SS and TMA
Soft tissue, skeletal and dentoalveolar changes following conventional anchorage molar distalization therapy in class II Non-growing subjects: a multicentric retrospective study
No full textThe purpose of this retrospective prolective study is to evaluate soft tissue, dentoalveolar and skeletal vertical changes following conventional anchorage molar distalization therapy in adult patients.Forty-six patients (34 females, mean age 25 years 6 months; and 12 males, mean age 28 years 4 months) were recruited from 4 specialists Board Certified. All subjects underwent molar distalization therapy according different distalization mechanics. Cephalometric headfilms were available for all subjects before (T0) and at the end of comprehensive treatment (T1). The initial and final measurements and treatment changes were compared by means of a paired t-test or a paired Wilcoxon test.Mean total treatment time was 3 years 3 months ± 8 months. Maxillary first and second molars distalized 2.16±0.84mm and 2.01±0.69mm respectively, but also maintained a slight distal tipping of 1.45° (min 2.22°, max -6.45°) and 3.35° (min 0.47°, max -15.48°) at the end of treatment. Distal movement of maxillary first molar contributed 57.6\% to molar correction, and 42.4\% was due to a mesial movement of mandibular first molar (1.59±0.46mm). Dentoalveolar changes contributed to overjet correction; maxillary incisors retroclined 5.78°±3.17°, lower incisors proclined 7.49°±4.52° and occlusal plane rotated down and backward 2.32°±2.10°. A significant clockwise rotation of the mandible (1.97°±1.32°) and a significant increase in lower facial height (3.35±1.48) mm were observed. Upper lip slightly retruded (-1.76±1.70mm) and lower lip protruded (0.96±0.99mm) but these changes had a negligible impact on clinical appearance.Although maxillary molar distalization therapy can be performed in adult patients, significant proclination of the lower incisors, clockwise rotation of the occlusal plane and increase in vertical facial dimension should be expected. Nevertheless, in absence of maxillary third molars and in presence of mandibular third molars this procedure could be recommended
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