Prolonged feeding practice and its effects on developing dentition.
(9/30)
Muscular activity of the lips, cheeks, and the tongue are important factors, which not only guide the occlusal development but also affect the growth of the jaws. Bottle feeding has been known to cause a myriad of changes in the oro-facial development. But the adverse effects of feeding practices with respect to developing dentition has been a subject of controversy. Hence a study was designed with the aim and objectives to check the commonly adopted feeding practices in South Kanara, to compare the occlusion of 3- to 5-year-old children with breast feeding, bottle feeding or combination, and to check whether prolonged feeding has any adverse influence on developing dentition. A total of 250 questionnaires were distributed to parents of 3- to 5-year-old children of which 153 were chosen for recording the impression and for studying the occlusion under various parameters. The results of the study indicated definite potential hazards of prolonged breast and bottle feeding especially with a tendency to develop openbite and posterior crossbite. It also suggested that an early preventive and interceptive approach. (+info)
Is tongue thrust that develops during orthodontic treatment an unrecognized potential road block?
(10/30)
The role of tongue thrust has often been suspected, long debated and largely dispelled as a primary etiological factor of malocclusion. However, tongue thrust may contribute to poor occlusal intercuspation both during and after treatment. A tongue thrust may also develop during orthodontic mechanotherapy as a result of the transient creation of intra and interarch spaces and this little recognized phenomenon was found to occur in many randomly followed cases. In many instances, this seemingly adaptive and secondary response of the tongue posture and function may persist and thereafter impede the resolution of intra and interarch problems. (+info)
Tongue to palate contact during speech in subjects with and without a tongue thrust.
(11/30)
The aims of this study were to determine the location and movements of the tongue on the palate during pronunciation of Persian consonants and selected words in subjects with and without a tongue thrust (TT). Ten patients with a TT and 10 control subjects, 9-13 years of age, matched for age, gender, ethnicity, type and severity of malocclusion, with no history of orthodontic treatment, surgery, or systemic disease were selected. Maxillary alginate impressions were taken to construct upper removable appliances with 12 electrodes. Fine wires connected the electrodes to a specially designed electropalatovision (EPU) device. The removable appliance was inserted in the upper arch and then the Persian consonants and some selected words were pronounced by both groups. An electromechanical marker was included on each electrode which showed the tongue movements on the palate. Tongue movements, the quantity of the tongue contacts, and the location of the tongue were compared using t- and Chi-square tests. In the TT group, the tongue had more contact with the palate on six electrodes (P < 0.001). When pronouncing the consonants, the tongue made contact anteriorly on the palate in the TT group. The quantity of tongue contacts with the palate was similar in both groups. During pronunciation of selected words, the contact points of the tongue to the palate were similar in both groups. (+info)
Consequences of bottle-feeding to the oral facial development of initially breastfed children.
(12/30)
OBJECTIVE: To identify and assess the possible consequences of bottle-feeding on the oral facial development of children who were breastfed up to at least six months of age. METHOD: Two hundred and two children (4 years of age) enrolled in an early health attention program participated in the study. The sample was divided into two groups: G1 (children who used only a cup to drink) and G2 (those who used a bottle). RESULTS: Lip closure was observed in 82% of the children in G1 and in 65% of those in G2 (p = 0.0065). The tongue coming to rest in the maxillary arch was found in 73% of the children in G1 and in 47% of those in G2 (p = 0.0001). Nasal breathing was observed in 69% of G1 and in 37% of G2 (p = 0.0001). The maxilla was shown to be normal in 90% of G1 and in 78% of G2 (p = 0.0206). CONCLUSION: Use of the bottle, even among breastfed children interferes negatively with oral facial development. (+info)
Pressure on anterior region of palate during thumb-sucking.
(13/30)
Measurement of the pressure applied to the anterior region of the palate and incisor region of the mandible during thumb-sucking was carried out 3 female children. A polyethylene bag embedded with a high-sensitivity small pressure sensor was fixed on the ventral side of the thumb so that the baroreceptor could be interposed between the thumb and palate during thumb-sucking. The children were allowed to perform habitual thumb-sucking, and the resulting pressure signals were detected with a high-response dynamic strainmeter and recorded. Measured peak pressures were about 2-4.5 kgw, with large individual variation, and waveform patterns also varied. Characteristics of thumb-sucking habits and thumb-sucking pressure were related to malocclusion. Measurement of thumb-sucking pressure is believed to be effective for assessment of the qualitative relationship between thumb-sucking and malocclusion. (+info)
Vertical interincisal trespass assessment in children with speech disorders.
(14/30)
Prevention perspective in orthodontics and dento-facial orthopedics.
(16/30)
In the present context of the public health directions, considering WHO main objective, that "all people of the world could reach the highest possible health level", in medicine, the accent is put on prevention. In spite of the important progresses achieved in orthodontics field, the treatment still remains a symptomatic one. In this context, we must ask ourselves what are the prevention theoretical and practical coordinates in orthodontics, which measures are available or could be elaborated for preventing the malocclusions development. From the clinical point of view, the most important element of the new perspective is that most of the cases of anomalies which in the present are cured by orthodontics are induced by functional and environmental factors and they can theoretically be prevented. Thus, the identification, control and guidance of the environmental factors which adjust the growing of the maxillaries and of the other cranio-facial structures would be the main target of a prevention program in orthodontics. (+info)