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The feasibility and efficacy of tobacco use prevention in orthodontics.

SMILES PLUS was the first study to extend the clinician-delivered logic model to prevention of tobacco use among adolescents. This multi-site trial with 154 participating offices, based on social learning theory and a behavioral ecological model, was designed to test whether orthodontists can prevent preteens from initiating smoking. The study found that orthodontists do not automatically adhere to anti-tobacco prevention services. Social learning variables can enhance both adherence to counseling guidelines and content of counseling to increase prevention effects. Providing financial incentives, tracking prescriptions, prompting positive feedback from patients, and adopting anti-tobacco counseling models in the office are likely to enhance anti-tobacco preventive services. Training orthodontists to be comfortable when advising nonsmoking youth not to start and to use social consequences to justify youth avoidance of tobacco might increase adherence to protocols and make their counseling more powerful. Adolescent smokers prior to intervention were more likely to start other risky behaviors later. Preventing tobacco use may halt additional risk behaviors and thereby reduce morbidity/mortality even more than expected from tobacco control alone. New and refined clinical trials should be conducted to determine the most effective interventions for adolescent tobacco control by clinicians.

Adolescent↗

Why a dentist for identification?

Identification of humans using the unique features of the teeth and jaws has been used since Roman times. Throughout history, various stories have been recorded in which a person's unusual smile, crowded or fractured teeth, or a single darkened tooth have been used to identify a corpse to the exclusion of all other people. Today, dentists are respected widely as a source of valuable data that can be used to answer questions that arise during a death investigation, and forensic dentists can use these data to provide significant conclusions that can initiate, extend, and substantiate the work of coroners, medical examiners, and detectives. By examining the dental traits and characteristics of one or many bodies, it is possible for the odontologist to provide the corpse with its identity and satisfy a basic societal need.

Adult↗

Full-mouth multidisciplinary restoration using the biological approach: a case report.

Bioesthetic dentistry is a conservative approach for the restoration of the teeth to natural form and function. This concept generally requires the examination of the patient's mouth, lips, smile, and face as a single collective structure rather than individual units. Harmonious long-term function depends upon the cohesive relationship between the anterior and posterior dentition, the dentogingival complex, the temporomandibular joints, and the neuromusculature system of the patient. This article defines the role of each of these elements and demonstrates their rehabilitation through a unified multidisciplinary treatment plan.

Adult↗

Infant affective responses to mother's still face at 6 months differentially predict externalizing and internalizing behaviors at 18 months.

This study investigated (a) stability and change in infant affective responses to the still-face interaction, (b) whether maternal depression affected infant responses, and (c) whether responses to the still-face interaction predicted toddler problem behaviors. Infants (63 girls and 66 boys) of European American mothers (67 depressed and 62 nondepressed) were observed in the still-face interaction at 2, 4, and 6 months. Affect and gaze were coded on a 1-s time base. There were stable individual differences in gazing away and in rates of negative affect. Developmental change occurred only for gazing away, which increased. At 18 months, infants who failed to smile at 6 months in the still-face interaction showed more externalizing-type behaviors than did other toddlers. Infants who failed to cry at 6 months showed fewer internalizing-type behaviors. Mothers' current depressive symptoms and infants' earlier responses to the still-face interaction made independent, comparable contributions to problem behaviors at 18 months.

Adult↗

[Brief video-assisted observation of visual attention, facial expression, and motor skills for diagnosis of attention deficit/hyperactivity disorder (ADHD)].

Can video assisted observation of visual attention, facial expression and motor skills contribute to the diagnosis of attention deficit/hyperactivity disorder (ADHD)? 20 children from 6 to 10 years of age, diagnosed for ADHD following the DSM-IV criteria, and an age and sex matched control group of 20 children with harmless upper airway infections were filmed during 3 minutes playing cards with their mothers and 7 minutes of oral arithmetic exercises. Two persons were trained for eight hours in recognizing 22 signs for visual attention loss, alterated facial expression like oversized and sustained smile and abnormal motor skills in ADHD-patient videos. Then they viewed minutes 2 and 3 and 3 and 4 of the 40 children in a randomized sequence and scored the signs. 8 of the 22 signs showed high (r > .75) and 9 showed medium (r > .6) interrater correlations. The presence of signs in the ADHD and in the control group was highly significantly different (a = 0.01, U-Test of Mann and Whitney) for 10 of the 22 signs and significantly different for other 4 signs (a = 0.05). The four field table comparison between the frequency of the signs showed correct positioning in 80% of all cases. The loss of visual attention was the most frequent sign in ADHD children. The signs of alterated facial expression were also among the highly correlated signs. These are used by us to find the individual dose for stimulant medication.

Attention↗

Additive contour of porcelain veneers: a key element in enamel preservation, adhesion, and esthetics for aging dentition.

Esthetics and function are equal concerns when restoring the anterior dentition. Modern concepts in restorative dentistry have brought new solutions through bonded porcelain veneers that are stress distributors and involve the crown of the tooth as a whole in supporting occlusal force and masticatory function. This recovery of the original biomechanics of the intact tooth, the biomimetic principle, is particularly valuable when considering the restoration of an aging dentition. Both function and appearance are affected by the senescent changes of the aging teeth. Erosion and surface wear lead to a progressive thinning of enamel, ultimately leading to increased crown flexibility and higher surface strains. It appears therefore that the restoration of tooth volume will not only re-establish the original and youthful appearance of the smile but will also allow the biomimetic recovery of the crown. The final treatment outcome strongly depends on the therapeutic approach chosen, the driving force of which should be the preservation of the thin remaining enamel. While a number of preparation techniques will expose dentin to a great extent, the principle of enamel preservation can still be fulfilled by the use of a specific approach. This article describes a treatment method which includes the use of a diagnostic template. This type of work strategy, documented with clinical cases, integrates additive wax-ups and acrylic mock-ups. The latter will provide a significant amount of diagnostic information and economy of tooth substrate, the importance of which cannot be overestimated in the completion, functionality, and longevity of the final restoration.

Acrylic Resins↗

Mobile health units. Design and implementation considerations.

The decision to provide health care services with a mobile van is one which educational and service facilities are increasingly pursuing. The benefits include: The potential to increase the availability of services to underserved populations where access to care is perceived to be one reason for underuse of available services. The opportunity to increase and broaden the educational experiences of students in a training program. The opportunity to develop a sense of social responsibility in the health care provider. The process of deciding to pursue a van purchase is complicated, and administrators may best be served by obtaining experienced consultants to help them fully comprehend the issues involved. After the decision to purchase a mobile unit is made, it is necessary to focus on van requirements and design to meet federal, state, and city codes concerning motor vehicles and health requirements. Some modifications of one's standard practices are needed because of these codes. Being aware of them in advance will allow a smooth project completion. This article provides information about some of the steps required to implement a mobile unit. The approximate time from initial concept to van delivery was 1 year, with one fully dedicated project coordinator working to assure the project's success in such a short time frame. Seeing the gratified personnel and students who serve the children on the "Smiling Faces, Going Places" Mobile Dental Van of the NYUCD (see Figure 2), and knowing the children would otherwise not have received such services, allows the health care professionals involved to feel the development of this van is an exciting mechanism for delivery of health care to individuals who would otherwise go without.

Child↗

[Archival materials collected by Prof. Wiktor Dega in the Department of the History of Medical Sciences, Karol Marcinkowski University of Medical Sciences - general characteristics].

Interesting archival materials collected by Prof. Wiktor Dega are held in the Department of the History of Medical Sciences belonging to Karol Marcinkowski University. There are mainly personal documents including: a military booklet, passport and different identity cards. They are also the diary from 1913. Noteworthy are the notebooks from his student period and diaries full of reflections from his scientific journeys abroad and chrestomathy from the professional literature. Moreover, the archival material about Prof. Degas' pre-war activity and a organiser of cost-free gymnastic courses for children with posture defects should be mentioned in Poznań. After the Second World War Prof. Dega worked on the Committee of Rehabilitation and Adaptation of Human Beings and organised the Polish Branch of the International College of Surgeons, and materials from that time are also available. Also important are documents associated with Prof. Dega's the Order of Smile from the St. Maria Magdelena secondary school in Poznań. His letters are extremely valuable and the interesting press articles, photos and diplomas are also noteworthy.

Archives↗

[Transposition of pedicled sternocleidomastoid muscle for repair of facial paralysis in late stage].

OBJECTIVE: To explore a new surgical approach to repair facial paralysis in late stage, using regional transposition of pedicled sternocleidomastoid muscle for the dynamic reanimation of the paralyzed face. METHODS: Seven cases with facial paralysis in late stage from December 1999 were treated and followed up for 10 months before clinical evaluation. In all of the cases, the sternal and clavicular branches of the sternocleidomastoid muscle were both elevated from their bony attachments, with the mastoid insertion left in situ as the pedicle for blood supply and accessory nerve maintained in it. The muscle strips were transposed and sutured to the orbicularis oris around the mouth corner on the paralyzed side. RESULTS: Static asymmetry of nose and oral commissure on the paralyzed side were corrected immediately after operation, and the movement of the oral commissure recovered one week after operation. Symmetric smiling was observed in one month and all of the oral movements recovered in 10 months postoperatively. CONCLUSION: The new approach to repair facial paralysis in late stage by regional transposition of pedicled sternocleidomastoid muscle is effective in restoration of both static and dynamic symmetry of nose and mouth, and in recovery of the facial expression and the oral commissure.

Adult↗

Wilson's disease in Eastern India.

INTRODUCTION: Wilson's disease is an inherited autosomal recessive (AR) disorder of copper metabolism transmitted by a mutant gene on chromosome 13q14-21 and results in abnormal accumulation of copper giving rise to protean manifestations. AIM: The aim is to study the clinical features, biochemical and radiological abnormalities of this disorder in Eastern India and the effect of treatment. RESULTS: Forty nine (n = 49) cases were studied over a period of 10 years. Majority of patients were male with mean age of onset being 11.13 years. They commonly presented with dysarthria, dystonia or drooling. The clinical features were dystonia (96%), silly smile (92%), dysarthria (80%), cognitive decline (71%), tremors (47%), bradykinesia (45%), etc. Family history suggested an autosomal recessive pattern. Sibling screening revealed that 4/8 (50%) were presymptomatic. All but one had presence of Keyser Fleischer (KF) ring in their cornea. Serum copper was reduced in 77% while ceruloplasmin was less in 94% of cases. The commonest abnormality seen in CT/MRI were in basal ganglia (74%) followed by white matter changes (59%) and brain stem changes (20.5%). The response to treatment was not as good and there was an initial deterioration in 50% of cases. Only five patients could go back to their school. CONCLUSION: Wilson's disease have protean manifestations. All children with slowly progressive extrapyramidal syndrome should be investigated for it. Screening of all asymptomatic siblings for Wilson's disease must be carried out. Early institution of proper treatment and life long continuation is indicated in all. In the present series, an earlier age of onset of neurological signs and symptoms were seen; there was initial deterioration in 50% of cases and the response to treatment was not as good.

Adolescent↗

Current status of nightguard vital bleaching.

Indications for using a 10% carbamide peroxide material in a custom-fitted tray to whiten teeth include teeth discolored from aging, chromogenic foods and drinks, and smoking, and also brown fluorosis-stained teeth, single dark teeth, and tetracycline-stained teeth. Tetracycline-stains may require 2 to 6 months of nightly treatment, whereas after discolorations generally resolve in 2 to 6 weeks. After an initial relapse in the first 2 weeks after the end of treatment, color tends to be stable for 1 to 3 years, with some treatments being permanent. The ADA has approved only six 10% carbamide peroxide materials, which have extensive research and publications on safety and efficacy. Considering the average cost of $196 per arch, and the noninvasive nature of this treatment, nightguard vital bleaching is probably the safest, most cost-effective, patient-pleasing method to improve the appearance of a smile. However, it should be supervised by a dentist for the proper examination, diagnosis of the cause of discoloration, treatment options, and fabrication and fitting of the carrier. Sensitivity during whitening may be treated with fluoride and potassium nitrate.

Anti-Bacterial Agents↗

The finishing touches for more predictable esthetic dentistry.

The popularity of esthetic dentistry has transformed the traditional dental practice. Anterior tooth restorations impact the beauty of a smile as well as the function of the entire dentition. The long-term success of esthetic restorations can be improved by controlling the occlusal forces to which they are subjected. During sleep and periods of intense concentration, dental patients move their mandibles far beyond the accustomed positions and are able to place significant forces on anterior teeth. The dentist must test and balance new restorations to ensure that they allow for the full range of mandibular movement. Three basic types of movements are discussed.

Dental Prosthesis↗

The functionally fixed restoration: a third modality of treatment.

Most dental practitioners as well as their patients prefer to have fixed rather than removable restorations. However, there are many clinical situations that prohibit the use of the fixed modality. These clinical cases can vary from simply not having the proper number of healthy teeth and/or implants to the esthetically challenging cases of high smile lines and severe loss of alveolar support. The approach of using a traditional removable prosthesis in these situations has always been met with severe compromises. The functionally fixed restoration is a third modality of treatment that can solve many of the problems of the removable restoration and at the same time provide the same comfort and success of the fixed prosthesis.

Adolescent↗

[Applied study on computerized quantitative facial nerve functional estimating system].

OBJECTIVE: To prove the clinical applied value of quantitative facial nerve functional estimating system (QFES) by comparing the estimating results of the computerized QFES with manual QFES. METHODS: 50 volunteers with normal facial nerve function were used. Every volunteer was taken 7 photos with digital camera, which including static, and forehead wrinkle, eyebrows knit tight, eyes closed tight, nose wrinkle, smile, pout and mouth open to maximal seven expressions. The facial nerve function was estimated by computerized QFES, and the estimating results were compared with manual estimations by QFES in our study during 1991-1994. RESULTS: All estimating indices in this study were in the range of 0.70-0.90 as well as the manual estimating results. However, the stand deviation in this study showed significantly smaller than the previous study. CONCLUSIONS: QFES is an ideal quantitative facial nerve functional estimating system, after computerization the efficiency is increased and the systemic error is decreased. It will benefit to apply computerized QFES in the facial nerve function estimating fields.

Diagnosis, Computer-Assisted↗

Functional localization of brainstem and cervical spinal cord nuclei in humans with fMRI.

BACKGROUND AND PURPOSE: To our knowledge, no published functional map of the human lower brainstem exists. Our purpose was to use 1.5-T functional MR imaging (fMRI) to visualize the location of cranial nerve (CN) nuclei and other pontine, bulbar, and cervical spinal cord nuclei by using specific sensory stimulation or motor performance. METHODS: We localized nuclei by using cross-correlation analysis of regional blood oxygen level-dependent (BOLD) signal intensity during specific motor and sensory procedures based on known functions of specific nuclei. Statistical parametric mapping (SPM) analysis was used for comparison. Head, cardiac, and respiratory motion artifact correction was applied. Histologic atlases aided localization. RESULTS: We obtained evidence of localization of the following nuclei by using tests, as follows: main trigeminal sensory (CN V), brushing the face; abducens (CN VI), left-right eye movement; facial (CN VII), smiling and lip puckering; hypoglossal (CN XII), pushing the tongue against the hard palate; nucleus ambiguus, swallowing; nucleus tractus solitarii (NTS), tasting a sweet-sour-salty-bitter mixture; nucleus cuneatus, finger tapping; and cervical spinal cord levels C1-C3, tongue movement to activate the strap muscles. Activation of cortical motor and sensory areas and somatosensory thalamus corresponded with the tasks and sites of brainstem activation. Head movement was minimal, typically less than 1 mm in all three axes. CONCLUSION: With 1.5-T fMRI, the CN nuclei of the pons and medulla, and other nuclei of the lower brainstem and cervical spinal cord, can be localized in awake humans with specific sensory stimulation or motor performance.

Abducens Nerve↗

[The Gioconda from the historical and medical perspective (hypotheses of pathology in her painting)].

As a preamble, some historical and biographical brushtrokes of the Gioconda, Leonardo and his painting will be outlined. Following these observations, a series of medical interpretations will be put forth regarding his painting with the aim of analysing possible pathologies related to: the skin, hair, eyes, hands and the reproductive and endocrine systems. We will conclude by observing the famous work The Smile and by extracting a hypothesis on pathologies of various natures such as: neurological, muscular, hypoacusic, asthmatic, psychoneurotic, psychiatric, ethylic, sexual, stress-related, stomatological (bruxismo) and the driving force that lies behind setting off the Stendhal Syndrome: a psychosomatic disorder known to be due to the human being's susceptibility to saturation from having received impressions of great artistic beauty.

History, 16th Century↗

[Orthodontic approach to asymmetry].

From an orthodontic point of view, asymmetries can be gathered in three great clinical entities: mandibular lateral deviations, dental asymmetries without skeletal involvement, skeletal asymmetries. Once the therapeutic aims and the principles of the orthodontic approach of these dysmorphoses have been recalled, the authors present the various orthodontic means implemented in this type of treatment. Four cases treated illustrate those types of treatment. Vertical non-surgical asymmetry may have an obvious local origin, for instance, a unilateral damage to a nerve. but usually, there is no evident origin. Frequently the occlusal slippage of a severe sagittal or a vertical malformation, which may evolve as a borderline surgery case, is suspected to be the real cause. In these cases, the diagnosis is always late, with the ending growth. The treatment needs peculiar strong asymmetric mechanics and, sometimes, unilateral mixed extractions. The post-treatment occlusion can be unstable; for this reason, the finishing steps must be carefully conducted. Four clinical case reports develop these points ov view. Multidisciplinary treatments prove very useful to solve three types of clinical situations. In the adult patient, facial esthetics are indicated in severe dentofacial asymmetries. Esthetic improvements of dental nature are still required in deviated smiles, or frontal tippings of the occlusal plane. In addition, asymmetrical intermaxillary relationships will lead to functional anomalies: TMJ disorders, dental wear or lingual dysfunctions. Finally, multidisciplinary treatments in the adult concern the occlusal transverse anomalies, the lateral crossbites, the Class II subdivisions, the deviations of the inter-incisor midlines or unilateral edentulousness. The various plans of treatment, as well as the orthodontic mechanics used, are illustrated in the following development by clinical cases.

Adult↗

Ingot selection for aesthetic restorations using contemporary pressed ceramics.

Accurate communication among the patient, clinician, and laboratory technician is critical to the development of a functional, aesthetic restoration. The use of pressed ceramic restorations has provided a durable, consistent alternative for full-coverage crowns, veneers, onlays, and short-span fixed partial dentures. This article discusses the importance of proper ingot selection in the fabrication of aesthetic restorations and in the realization of patients' expectations for smile design. Ceramic ingots are available in a variety of colors and opacities that provide the clinician and laboratory technician with the latitude to select an ingot that will ultimately ensure patient satisfaction.

Aluminum Silicates↗