Search

Cinematic rendering (CR) is a novel 3D visualisation technique, which provides photorealistic image reconstructions with a high level of image details. Aim of this case series is to show the application of CR in Cone Beam Computed Tomography (CBCT) in dentomaxillofacial pathologies. Four exemplary CBCTs of clinical dentomaxillofacial cases were selected. 3D CR reconstructions were generated from the CBCT by using a vendor-provided standard CR software. Cases include 1) external tooth resorption, 2) ankylosed maxillary molar tooth, 3) giant cell-associated osteolytic lesion of the mandible, 4) unilateral cleft lip/palate with additional skeletofacial deformity. CBCTs of four patients showing dental and osseous pathologies were successfully reconstructed. Overall, a subjectively improved 3D understanding of the presented pathologies was observed. The CR images seem to present more plasticity, giving a better feeling for the spatial depth of the tissue. CR can be applied to CBCT images in dentomaxillofacial patients. The photorealistic appearance might improve the understanding of complex anatomy or pathology, could facilitate patient communication, and might be helpful for advanced medical education. We see potential in the use of CR for additional 3D visualization. The actual image diagnosis is done in the classic sectional planes. The significance of CR reconstruction for image diagnostics must be investigated in appropriate studies.

Aim: To examine the different emotions expressed by children exfoliating their first primary tooth, evaluate their proportional distribution, and reveal possible influences of child- and parent-related variables on the reported emotions., Design: A cross-sectional questionnaire was directed to parents of children who had recently shed at least one primary tooth. Primary outcome variables were the child's emotions at the time of exfoliation. Child-related determinants were sex, duration of tooth wiggle, previous accident- or caries-related visits at dentist, and having witnessed tooth exfoliation in older siblings. Parent-related determinants included socio-economic variables (education, religion, country of origin)., Results: One thousand two hundred and seventy-four of 3617 questionnaires were returned and analysed (35.2%). 82.0% of the parents reported positive, and 22.0% negative emotions in their child. Previous caries-related visits at the dentist diminished the likelihood of positive emotions (OR = 0.65), and accident-related visits increased the odds of positive emotions (OR = 1.57), as did an extended duration of tooth wiggle (OR = 1.98). Higher education of mothers (OR = 2.89) and fathers (OR = 1.96) and an origin from non-Western countries (OR = 2.56 and OR = 1.85, respectively) were also related to positive emotions., Conclusions: For most children, losing the first primary tooth is associated with positive emotions. Dental visits and parental factors influence these emotions. Parents and dentists should be aware of their impact on children's emotional development., (© 2018 BSPD, IAPD and John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Painless dental treatment is of major interest in pediatric dentistry. Local anesthesia contains epinephrine, which prolongs soft tissue anesthesia.This, however, is often a source of iscomfort for children and is responsible for certain side effects (e.g., self-inflicted soft tissue lesions). The aim of this study was to investigate whether an epinephrine-reduced articaine solution could reduce the duration of soft tissue anesthesia and thereby reduce the risk of self-inflicted soft tissue lesions, while still providing an adequate anesthesia. In a non-interventional clinical study, routine dental treatment was performed on children and adolescents. An articaine 4% solution with an epinephrine-reduced solution (Ubistesin™ mite, 1:400,000) and a conventional epinephrine solution (Ubistesin™ forte, 1:100,000) were compared in terms of duration of soft tissue anesthesia. One hundred and fifty-eight patients (mite: 75, forte: 83) were treated (80% with infiltration anesthesia). In both groups, the average volume of the injection was comparable (mite: 1.2 ml, forte: 1.1 ml). One patient from each group showed unwanted side effects. In both groups, the local anesthesia was complete or sufficient (96%) to perform the planned treatment. The average treatment time was 24 minutes in the mite group and 28 minutes in the forte group. The difference in mean duration of soft tissue anesthesia was statistically significant (p = 0.001, mite: 2.1 h, forte: 2.8 h). Thanks to its high efficacy, tolerance, and reduced soft tissue anesthesia, the articaine 4% solution with the reduced epinephrine concentration (1:400,000) was considered a safe and suitable drug for routine treatments in pediatric dentistry.

Halitosis is a widely spread condition. There are numerous causes. The aim of this study was to investigate the influence of fixed orthodontic appliances on the occurrence of halitosis. 55 patients in an orthodontic practice were monitored at three points in time after application of orthodontic appliance (T1: immediately after application, T2: 4 weeks after application, T3: 3 months after application). Monitoring included patient self-evaluation, plaque index, tongue coating index and organoleptic measurement. The subjective parameters taste, dry mouth and breath odor did not show statistical differences. However, with the presence of fixed orthodontic appliances, confidence when performing dental hygiene decreased statistically significantly (p = 0.003). Additionally, the tongue coating index showed a statistically significant difference between T1 and T2 (p = 0.012) as well as T1 and T3 (p ⟩ 0.001). Analogous results were found for organoleptic measurement (T1 and T2 [p = 0.002]; T1 and T3 [p ⟨ 0.001]) and plaque index (T1 and T2/ T3 [p ⟨ 0.001]). Fixed orthodontic appliances lead to a statistically significant increase of the plaque and tongue coating indices. A statistically significant increase was also observed with organoleptic measurement scores. The suspected positive correlation between halitosis and fixed orthodontic appliances was confirmed. Halitosis can be an important indicator of oral health during orthodontic treatment and can serve as a motivating factor for adequate patient oral health care maintenance.

Objective: Bracket bonding has been a major advance in orthodontic treatment. However, the method of debonding can lead to diverse problems such as enamel fractures, enamel loss and enamel scratching. In this clinical investigation we aimed to evaluate the influence of wearing dental loupes on enamel damage during the debonding procedure., Material and Methods: 22 consecutive patients were randomly assigned in a split-mouth study to evaluate adhesive removal with and without the use of dental loupes (2.5×, LED headlight). Tooth replicas in epoxy resin were made from silicone impressions. Electron microscopic images (50× magnification) of 394 buccal enamel surfaces were evaluated according to an enamel damage index (EDI), line angle grooves (LAG) and composite residues (CR) on anterior teeth, premolars and molars., Results: The EDI revealed highly significant advantages for debonding with dental loupes, with which the EDI was significantly higher for molars, while still less than without dental loupes. We detected no differences between the tooth groups without dental loupes. We found significantly fewer LAG on anterior teeth debonded with dental loupes. CR were fewer in the dental loupes group, and we noted no significant differences between the tooth groups., Conclusions: Dental loupes affect the quality of the debonding procedure, resulting in less enamel damage and composite residue, as well as fewer LAG compared to the control group. We therefore strongly recommend the use of dental loupes in orthodontic debonding procedures.