DENTAL AGE ASSESSMENT USING DEMIRJIAN’S METHOD – A RADIOGRAPHIC STUDY

Dental age estimation on panoramic X-rays is very useful for pediatric dentists and orthodontists in choosing a treatment plan, without the need for any additional radiographic investigation. The aim of this study was to compare chronological and dental age using Demirjian’s method on children from Central Romania. The study was conducted on X-rays of 285 children aged between 6-13 years. Dental age was determined based on the degree of mineralisation of the seven left mandibular teeth, and t-tests were used to assess the difference between dental age and chronological age within each age category. Dental age was more advanced in girls in almost all age groups, whereas in boys just the 6-7 and 8-9 age groups presented a more advanced dental age. The results of our study show that Demirjian’s method has some limitations for a Romanian population, and that these standards are applicable only in certain age groups. Further research is required on a larger sample

DENTAL AGE ASSESSMENT USING DEMIRJIAN’S METHOD – A RADIOGRAPHIC STUDY

Dental age estimation on panoramic X-rays is very useful for pediatric dentists and orthodontists in choosing a treatment plan, without the need for any additional radiographic investigation. The aim of this study was to compare chronological and dental age using Demirjian’s method on children from Central Romania. The study was conducted on X-rays of 285 children aged between 6-13 years. Dental age was determined based on the degree of mineralisation of the seven left mandibular teeth, and t-tests were used to assess the difference between dental age and chronological age within each age category. Dental age was more advanced in girls in almost all age groups, whereas in boys just the 6-7 and 8-9 age groups presented a more advanced dental age. The results of our study show that Demirjian’s method has some limitations for a Romanian population, and that these standards are applicable only in certain age groups. Further research is required on a larger sample

CORRELATION BETWEEN BMI, DENTAL CARIES AND SALIVARY BUFFER CAPACITY IN A SAMPLE OF CHILDREN FROM MURES COUNTY, ROMANIA

Both dental caries and malnutrition in children are serious public health problems with diet as a common risk factor. The aim of this study is to investigate the relationship between dental caries, Body Mass Index (BMI) and salivary buffer capacity in children. Materials and Method: The first part of the study was conducted on 144 children, aged between 6 and 12 years, examined in the Pediatric Dentistry Department of UMF Tirgu Mures. Nutritional status was assessed using BMI in accordance with the recommendations of the World Health Organisation. The sample was divided into four groups based on BMI: underweight, normal weight, overweight and obese for age. Dental caries were evaluated using the DMFT (Decayed Missing Filled Teeth) index for permanent dentition and dmft (decayed missing filled teeth) for deciduous dentition. Salivary buffer capacity was recorded with CRT Buffer Strips from Ivoclar Vivadent. Results: The mean age of the sample was 9.11 ± 0.19 years, the mean dmft was 2.58 ± 0.26 and mean DMFT 1.76 ± 0.2. The underweight group presented a significantly higher dmft index compared to the other groups. A negative correlation between the salivary buffer capacity and the caries index was found. Conclusions: Because the results of this preliminary study show a higher caries incidence in underweight children, the relationship between dental caries and malnutrition should be further investigated. Dentists and physicians treating children should consider malnutrition as a risk factor for dental caries

CORRELATION BETWEEN BMI, DENTAL CARIES AND SALIVARY BUFFER CAPACITY IN A SAMPLE OF CHILDREN FROM MURES COUNTY, ROMANIA

Both dental caries and malnutrition in children are serious public health problems with diet as a common risk factor. The aim of this study is to investigate the relationship between dental caries, Body Mass Index (BMI) and salivary buffer capacity in children. Materials and Method: The first part of the study was conducted on 144 children, aged between 6 and 12 years, examined in the Pediatric Dentistry Department of UMF Tirgu Mures. Nutritional status was assessed using BMI in accordance with the recommendations of the World Health Organisation. The sample was divided into four groups based on BMI: underweight, normal weight, overweight and obese for age. Dental caries were evaluated using the DMFT (Decayed Missing Filled Teeth) index for permanent dentition and dmft (decayed missing filled teeth) for deciduous dentition. Salivary buffer capacity was recorded with CRT Buffer Strips from Ivoclar Vivadent. Results: The mean age of the sample was 9.11 ± 0.19 years, the mean dmft was 2.58 ± 0.26 and mean DMFT 1.76 ± 0.2. The underweight group presented a significantly higher dmft index compared to the other groups. A negative correlation between the salivary buffer capacity and the caries index was found. Conclusions: Because the results of this preliminary study show a higher caries incidence in underweight children, the relationship between dental caries and malnutrition should be further investigated. Dentists and physicians treating children should consider malnutrition as a risk factor for dental caries

Orthodontic tooth movement with and without corticotomy – A study realized on animal model

Orthodontic treatment of dento-maxillary anomalies is a common therapeutic intervention, with a growing number of pediatric and adult patients requiring it [1]. The raising understanding of the need for this treatment option has led to a shift in the addressability of various social groups, leading to an increase in adult patients' interest [2]. Orthodontic treatment in adult patient is more dificult because the bone remodeling is hard to do and thereis not growing process. Cortiotomy consists of milling the alveolar bone, the vestibular board, in order to create small labor in which the dental displacement following the application of orthodontic force will be faster. The corticotomy is performed in local anesthesia, with bone cutters, under continuous cooling with saline. Orthodontic treatment in adult patient is more difficult because the bone remodeling is hard to do and thereis not growing process [3]. Filho et al. said that the introduction of this technique of corticotomy makes it possible to solve complex cases while providing an alternative to the classical approach, eliminating a number of inventients, such as dental extractions [4]. Despite the many benefits it can bring when it is integrated into orthodontic therapy to correct various dento-maxillary changes, the corticotomy is still regarded with some reluctance by orthodontists. Reitan et al. (2015) consider that the main reason is that the intervention is expensive and some consider it invasive [5]. In a similar study, Bos et al. (2005) points out that even for patients, the high costs of such an intervention can lead to its refusal, with the risk of obtaining results at the end of less satisfactory orthodontic treatment [1]. Dab et al. (2007) states that there is a direct link between the degree of dental displacement induced by the corticotomy and the type of dento-maxillary anomaly that needs to be corrected, but also the time of orthodontic treatment in which the surgery is performed [6]. Further experimental studies are also needed to understand in more detail the biological mechanisms and transformations that occur at the intervention level

THE PREVALENCE OF MANDIBULAR MIDLINE DEVIATION IN CHILDREN AND ADOLESCENTS WITH DIFFERENT TYPES OF MALOCCLUSIONS

In this study, the prevalence of mandibular midline deviation in different types of malocclusions were evaluated taking into account sexual dimorphism in patients with mixed and permanent dentition. With the aforementioned aim, a cross-sectional study was carried out on a total of 214 patients (134 females and 80 males) aged between 7-15 years (with a mean age of 9.5 ± 2 years). On the study casts of each subject participating in the study, the displacement of the lower dental midline compared to the upper one was measured in different classes of malocclusion, taking into account sexual dimorphism. Three study groups were formed: first with mandibular midline deviation with values less than 2 mm, second with deviation between 2-4 mm and third with deviation more than 4 mm. Subsequently, the prevalence of the displacement of the lower dental midline was assessed taking into account the sexual dimorphism and the Angle classes malocclusions analyzed (Angle Class I, II/1, II/2, III) and UPC (unilateral posterior crossbite). Mandibular midline deviation greater than 2 mm was observed in more than three quarters (75.7%) of the patients in the studied group. In the five classes of malocclusion, a higher frequency of displacement of the lower dental midline was appreciated in the range of 2-4 mm of 59.8%. In this interval, the highest percentage of displacement was observed in Angle Class II/1 (18.2%), followed by unilateral posterior crossbite UPC (15%) and Angle Class II/2 (13.1%). Most large displacement of the lower dental midline (with a value more 4 mm) was recorded in unilateral posterior crossbite UPC (5.6%). Although the displacement of the mandibular midline was recorded in a slightly increased percentage in males (61.25%) compared to the group of females (58.95%), from a statistical point of view, no notable differences were reported between the two genders. Dental midline deviation changes should be noted and analyzed from the beginning of orthodontic treatment in order not to cause later functional or aesthetic disorder

CLINICO-STATISTICAL STUDIES REGARDING THE FREQUENCY OF SUPERNUMERARY TEETH IN A GROUP OF CHILDREN IN TG. MURES

Supernumerary teeth represent a maxillarry dental anomaly of number, registered in the 1st Angle class. The goal of the authors was to analyze the frequency and the pattern of these anomalies in number in a group of patients who presented for an orthodontic treatment at the Clinic of Orthodontics and Pediatric Dentistry of the Faculty of Dentistry, UMFST Tg. Mures between the years 2015 and 2018 and to establish correlations between this anomaly and other pathologies belonging to the orthodontic field. The analyzed variables included age, gender, health condition, constitution, origin, and the statistical analysis was focused on the following parameters: the affected dentition and arch sector, number of supernumerary teeth and their location, association with other anomalies, onset of complications