Objective To investigate the medical cost of 70 patients with panic attack and efficacy of selective serotonin reuptake inhibitors (SSRIs) in the treatment Methods The course, medical cost, types and times of main examination of all 70 patients were reviewed and analyzed The effect of SSRIs on the patients was studied with Anxiety and Depression Scale Results The 70 patients had long course, high medical cost and received many unnecessary medical examinations SSRIs were effective on patients with panic attack in light of Anxiety and Depression Scale Conclusion Patients with panic attack have long course and spend much unnecessary cost before final diagnosis SSRIs is useful and safe in the treatment of panic attack

Objective To investigate the relationship between the protein kinase A (PKA) and apoptosis of cultured neurons after hypoxia Methods Model of cultured rat neuron under hypoxia condition was established. Rp cAMP, a specific inhibitor for PKC, at 4 different concentrations were separately cocultured for 2 h with the neurons having been cultivated under hypoxic condition for different times The activity of PKA, the expression of caspase 3 and the situation of neuron apoptosis were studied Results With the prolonging of hypoxic time the activity of PKA was increased significantly And the expression of activated caspase 3 and apoptotic DNA were increased as well The positive rate of fluorescence staining and the average fluorescent intensity of caspase 3 and TUNEL were significantly decreased along with the increasing concentration of Rp cAMP Conclusion ① PKA and caspase 3 are involved in the neuronal apoptosis after hypoxia ② Rp cAMP can attenuate the hypoxic neuronal apoptosis through the signal transduction of caspase 3 ③ The activating of PKA can aggravate hypoxic neuron apoptosis

Objective To explore the effect and possible mechanism of protein kinase C (PKC) on the apoptosis of cultured neurons after hypoxia Methods Model of cultured rat neurons under hypoxia condition was established. Calphostin C, an inhibitor for the catalytic subunit of PKC, at 4 different concentrations were separately cocultured for 2 h with the neurons having been cultivated under hypoxic condition for different times The activity of membrane PKC (mPKC), the expression of Bcl 2 and the situation of neuron apoptosis were studied Results With the prolonging of hypoxic time the activity of mPKC was increased significantly And the expression of Bcl 2 was decreased obviously and positive rate of TUNEL were significantly increased in a calphostin C concentration dependent manner Conclusion ① The activation of mPKC and Bcl 2 are involved in the apoptosis of neurons after hypoxia ② Hypoxia and calphostin C can aggravate the hypoxic neuronal apoptosis through the signal transduction of Bcl 2 ③ The activation of PKC can protect neuron against hypoxia

Objective:To investigate the effect of different crown heights of lateral incisor and canine on smile esthetics perception between orthodontists and patients.Methods:A total of 31 orthodontists and 56 patients on smile aesthetics perception were investigated.We adjusted the height of lateral incisor and canine to get 20 kinds of anterior tooth area morphology by Photoshop and asked interviewees to grade.Scores of satisfaction were recorded by Likert method.Results:Subjects in the 2 groups preferred smiles with upper anterior teeth edge parallel to lower lip.There was better acceptance for longer canines and less satisfaction at shorter lateral incisors in patients.Patients also got higher discrete degree of evaluation results and more rigorous about smile esthetics than orthodontists.Conclusion:Orthodontists and patients have different satisfaction at esthetics of anterior teeth.Esthetics preference should be considered in orthodontic treatment schedule.

Objective The aim of our work is to characterize individual normal occlusions to establish appropriate treatment standards for different vertical facial types. Methods A total of 30 patients with near-normal occlusion were grouped into high-angle group (eight cases), medium-angle group (12 cases), and low-angle group (10 cases) according to vertical facial skeletal type. Invivo5 software was used and digital imaging and communications in medicine data were rebuilt to measure the ∠L1/MP, ∠L6/MP, axis corner of L6, cant of occlusion plane, Balkwill angle, and Bonwill triangle of each group. Results Among the groups, the low-angle group had the smallest ∠L6/MP (P<0.05) and largest cant of occlusion. No significant difference was observed among the three groups with regard to the other parameters (P>0.05). Conclusion Patients with low-angle vertical facial skeletal type requires a modified treatment standard. In this group, the treatment standard must ensure that the cant of occlusion plane is more parallel to the Frankfurt horizontal plane compared with those of the other groups, and the axis of L6 is tilted distally relative to the mandibular plane.

To observe three-dimensional changes of dentigerous cyst-associated maxillary canines (DCAMC) in adolescents after marsupialization by using cone beam computed tomography (CBCT).
 Methods: A total of 34 DCAMC patients with dentigerous cyst aged 10-14 were divided into central type and lateral type, while canines on the non-cyst side served as a control. A three-dimensional reference frame was set up to analyze the position, angle changes and influential factors for DCAMC by using CBCT before operation and in 3-6 month after operation.
 Results: 1) Compared with pre-operation, there was significant vertical movement in DCAMC after marsupialization. Tip of tooth moved labially while tooth axis inclined mesiodistally; 2) Horizontal, vertical movement and mesiodistal inclination of DCAMC were significantly greater than those in the health side; 3) Compared with the lateral type DCAMC, the central type DCAMC showed a significant changes in labial inclination; 4) Horizontal movement, mesiodistal and labial inclination of lateral type DCAMC were all evidently greater than those of the central type DCAMC; 5) Vertical movement and inclination of DCAMC after marsupialization were significantly correlated to the time interval (r=0.354, 0.374, both P<0.05), while vertical movement of cuspid in health side was significantly negative correlated with the patients' age and the level of root formation (r=-0.506, -0.721, both P<0.01).
 Conclusion: DCAMC in adolescents can obtain obvious changes in position and angles after marsupialization regardless of the level of root formation, which is beneficial for further orthodontic treatment.
Adolescent ; Child ; Cone-Beam Computed Tomography ; Cuspid ; Dentigerous Cyst ; Humans ; Maxilla

To investigate three-dimensional morphological features of temporomandibular joint in skeletal malocclusion Class III with different vertical skeletal facial types.
 Methods: A total of 46 adults with skeletal malocclusion Class III were enrolled and allocated into a normal-angle, a high-angle and a low-angle groups. All patients were undergone cone beam computed tomography (CBCT). Images of temporomandibular joint were reconstructed and analyzed by Invivo 5. Nine measurements relevant to the positions and forms of condyle as well as joint spaces were performed.
 Results: Significant differences were not observed between the 2 sides of each group among skeletal malocclusion Class III (P>0.05). Compared with the high-angle and normal-angle patients, the low-angle patients had larger superior spaces, bigger gradients of the articular tublecle, longer condyle, and larger internal spaces between the condyle and the fossa. Compared with the low-angle and normal-angle patients, the high-angle patients had smaller condylar antero-posterior diameters.
 Conclusion: Class III malocclusion patients with different vertical skeletal patterns have different positions and forms of condyles, which should be paid attention to in clinic.
Adult ; Cone-Beam Computed Tomography ; Face ; diagnostic imaging ; Humans ; Image Processing, Computer-Assisted ; Malocclusion, Angle Class III ; diagnostic imaging ; Mandibular Condyle ; diagnostic imaging ; Temporomandibular Joint ; diagnostic imaging