European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2014
The aim of this study was to evaluate the dento-skeletal effects of mixed palatal expansion (MPE)... more The aim of this study was to evaluate the dento-skeletal effects of mixed palatal expansion (MPE) on growing patients with a uni- or bilateral posterior crossbite and mild-to-moderate crowding as compared to untreated growing individuals using postero- anterior (PA) cephalometric analysis. A group of 24 patients (18 girls and 6 boys) treated with a Hyrax- type device was compared to an untreated matched control group at T0 (8.6 yrs ± 2.01) and T1 (10 yrs ± 2.00) using PA cephalograms. The cephalometric analysis included eight bilateral skeletal and dental landmarks. The groups were compared using independent sample t-test to estimate dento-skeletal effects on PA cephalograms. The treated group showed significant changes for the maxillary width (P<0.001) and upper molar width (P<0.001) when compared to those of the control group. MPE may effectively increase transverse dimensions and correct posterior crossbites.
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2011
To evaluate the dentoskeletal effects produced by Fränkel-2 (FR-2) appliance during the treatment... more To evaluate the dentoskeletal effects produced by Fränkel-2 (FR-2) appliance during the treatment of patients with Class II malocclusion by mandibular retrusion and to verify the long-term stability of these changes. Pre-treatment, post-treatment and long-term serial cephalograms (at least 10 years after the end of treatment) of patients treated with FR-2 were compared with data obtained from untreated controls. To be included in the study, patients and controls had to exhibit Class II malocclusion caused by short mandibular body. Lateral cephalograms were analysed with a specific tracing regimen in both groups. Summary measures for the initial cephalometric values and increments of changes between visits were calculated. Compared to controls, the FR-2 treatment produced a significant decrease in the ANB angle that improved the skeletal intermaxillary and occlusal relationship. At long-term follow- up, the FR-2 group showed further improvements of skeletal intermaxillary and occlusa...
ABSTRACT Objectives The purpose of this study was to investigate dental abnormalities in children... more ABSTRACT Objectives The purpose of this study was to investigate dental abnormalities in children with cleft lip and palate (CLP) in order to identify the most prevalent anomalies and the teeth most frequently affected.Materials and methodsWe analyzed orthopanoramics X-rays (OPT), computed tomography Dental Scans, clinical records, and dental casts from 18 consecutive patients (10 boys, 8 girls; mean age 11.2 years, range: 6 to 18), with CLP (complete or incomplete, mono- or bilateral) and recorded the presence of the following anomalies: supernumerary teeth, agenesis, shape and size anomalies, ectopic and dystopic eruptions, rotations and retained teeth.ResultsThe most frequent abnormalities were: agenesis (prevalence: 22.5%), ectopic and dystopic eruption (19.3%), rotations (17.7%), shape and size anomalies (16.1%), and retained teeth (14.5%). The most frequently affected teeth were the lateral (45.1%) and central incisors (32.2%), the cuspids (14.5%), and the second bicuspid (6.4%). Lateral incisors were usually missing (39.2%) or retained (21.4%), while central incisors were more often rotated (50%) or deformed (25%). The cuspids were ectopic (66.6%) or retained (23%), while the bicuspids were missing (25%), retained (25%), or presented alterations in number (25%) or shape/size (25%).Conclusions Each subject presented at least one dental anomaly. This high frequency indicates that identification of these anomalies is fundamental for appropriate management of cleft lip and palate.
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2014
The aim of this study was to evaluate upper and lower dental changes after Mixed Palatal Expansio... more The aim of this study was to evaluate upper and lower dental changes after Mixed Palatal Expansion (MPE) treatment in growing patients with posterior single or bilateral crossbite and mild-to-moderate crowding, as compared to untreated growing subjects by dental cast analysis. A group of 24 patients (18 girls, 6 boys) was treated with Hyrax-type device and compared with an untreated matched control group at T0 (8.6 yrs. ± 2) and at T1 (10 yrs. ± 2) using dental casts. The dental cast analysis was performed on four dental bilateral landmarks, on upper and lower casts; also upper and lower arch depths were measured. The groups were compared using independent sample t-test to estimate dental changes in upper and lower arches. The MPE group showed significant upper and lower arch changes when compared with the control group. Upper intermolar, interpremolar-2nd, interpremolar-1st (P<0.001) and intercanine widths (P<0.05) showed considerable changes in the treated group, while mandi...
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2014
The aim of this study was to evaluate the dento-skeletal effects of mixed palatal expansion (MPE)... more The aim of this study was to evaluate the dento-skeletal effects of mixed palatal expansion (MPE) on growing patients with a uni- or bilateral posterior crossbite and mild-to-moderate crowding as compared to untreated growing individuals using postero- anterior (PA) cephalometric analysis. A group of 24 patients (18 girls and 6 boys) treated with a Hyrax- type device was compared to an untreated matched control group at T0 (8.6 yrs ± 2.01) and T1 (10 yrs ± 2.00) using PA cephalograms. The cephalometric analysis included eight bilateral skeletal and dental landmarks. The groups were compared using independent sample t-test to estimate dento-skeletal effects on PA cephalograms. The treated group showed significant changes for the maxillary width (P<0.001) and upper molar width (P<0.001) when compared to those of the control group. MPE may effectively increase transverse dimensions and correct posterior crossbites.
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2011
To evaluate the dentoskeletal effects produced by Fränkel-2 (FR-2) appliance during the treatment... more To evaluate the dentoskeletal effects produced by Fränkel-2 (FR-2) appliance during the treatment of patients with Class II malocclusion by mandibular retrusion and to verify the long-term stability of these changes. Pre-treatment, post-treatment and long-term serial cephalograms (at least 10 years after the end of treatment) of patients treated with FR-2 were compared with data obtained from untreated controls. To be included in the study, patients and controls had to exhibit Class II malocclusion caused by short mandibular body. Lateral cephalograms were analysed with a specific tracing regimen in both groups. Summary measures for the initial cephalometric values and increments of changes between visits were calculated. Compared to controls, the FR-2 treatment produced a significant decrease in the ANB angle that improved the skeletal intermaxillary and occlusal relationship. At long-term follow- up, the FR-2 group showed further improvements of skeletal intermaxillary and occlusa...
ABSTRACT Objectives The purpose of this study was to investigate dental abnormalities in children... more ABSTRACT Objectives The purpose of this study was to investigate dental abnormalities in children with cleft lip and palate (CLP) in order to identify the most prevalent anomalies and the teeth most frequently affected.Materials and methodsWe analyzed orthopanoramics X-rays (OPT), computed tomography Dental Scans, clinical records, and dental casts from 18 consecutive patients (10 boys, 8 girls; mean age 11.2 years, range: 6 to 18), with CLP (complete or incomplete, mono- or bilateral) and recorded the presence of the following anomalies: supernumerary teeth, agenesis, shape and size anomalies, ectopic and dystopic eruptions, rotations and retained teeth.ResultsThe most frequent abnormalities were: agenesis (prevalence: 22.5%), ectopic and dystopic eruption (19.3%), rotations (17.7%), shape and size anomalies (16.1%), and retained teeth (14.5%). The most frequently affected teeth were the lateral (45.1%) and central incisors (32.2%), the cuspids (14.5%), and the second bicuspid (6.4%). Lateral incisors were usually missing (39.2%) or retained (21.4%), while central incisors were more often rotated (50%) or deformed (25%). The cuspids were ectopic (66.6%) or retained (23%), while the bicuspids were missing (25%), retained (25%), or presented alterations in number (25%) or shape/size (25%).Conclusions Each subject presented at least one dental anomaly. This high frequency indicates that identification of these anomalies is fundamental for appropriate management of cleft lip and palate.
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 2014
The aim of this study was to evaluate upper and lower dental changes after Mixed Palatal Expansio... more The aim of this study was to evaluate upper and lower dental changes after Mixed Palatal Expansion (MPE) treatment in growing patients with posterior single or bilateral crossbite and mild-to-moderate crowding, as compared to untreated growing subjects by dental cast analysis. A group of 24 patients (18 girls, 6 boys) was treated with Hyrax-type device and compared with an untreated matched control group at T0 (8.6 yrs. ± 2) and at T1 (10 yrs. ± 2) using dental casts. The dental cast analysis was performed on four dental bilateral landmarks, on upper and lower casts; also upper and lower arch depths were measured. The groups were compared using independent sample t-test to estimate dental changes in upper and lower arches. The MPE group showed significant upper and lower arch changes when compared with the control group. Upper intermolar, interpremolar-2nd, interpremolar-1st (P<0.001) and intercanine widths (P<0.05) showed considerable changes in the treated group, while mandi...
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Papers by Vincenzo Grassia