The Effects of Nd:YAG Laser on Maxillary Canine Distalization Rate

The aim of this study was to assess the effects of low level radiation of Nd:YAG laser on maxillary canine distalization rate. The study was consisted of 14 (9 girls, 5 boys) upper premolar extraction patients aged 15-19 years. After the extraction of teeth, dental arches were aligned. Afterwards canine distalization was performed by 12 mm closed coil spring on 0.016”0.022'' ss arch wire with force of 150 grams. The right canines of the patients were included in laser group and the left canines were included in control group. The roots of canines were separated into two parts both on the vestibular and palatinal sides and each part were irradiated for 10 seconds. Laser application was carried out at the first, second, third and seventh day of canine distalization period. The density of the applied energy at each appointment was 40 J/ cm2. The distalization amounts were defined on dental casts taken just before and at the end of distalization period. Data was analysed on SPSS 10.1 by Mann-Whitney U analysis. Acccording to the statistical analysis, canine distalization rate was higher in the control group. When two groups were compared, the difference between the distalization amounts was not statistically significant (p=.294). Laser biostimulation parameters used in this study did not affect the canine distalization rate significantly. For this purpose further studies using spesific wave lengths with different doses are needed

Treatment of Maxillary Canine and Premolar Transposition: Case Report

Transposition is a dental anomaly manifested by a positional interchange of 2 adjacent teeth within the same quadrant of dental arch. The most frequent tooth transposition seen in the literature is maxillary canine-first premolar [Mx4-3] transposition. The aim of this study was to present treatment of a 14 year old girl who had transposed maxillary left canine and maxillary left premolar teeth. In this case although the transposed canine and premolar teeth were kept in order, satisfying esthetic and stable results were obtained

Evaluation of Patients with Cleft Lip and Palate in Southeastern Anatolian Region

Objective:Our study included patients with cleft lip and palate who applied to Gaziantep University Dentistry Faculty Orthodontics Department between 2010 and 2014. The aim of this study was to reveal the characteristics of these patients with demographic values.Methods:In total, 118 patients were included in this study. The patients were pursued by phone calls, and the study was conducted with only 64 patients. The demographic map was created with a statistical expert as a questionnaire.Results:It was thought that the reason for not being able to include the remaining 54 patients was a change in phone number, designation, or others. One patient who was to be interviewed died because of heart failure. The results revealed that the place of birth of 18.75% patients was a metropolitan region that of 54.68% was a province, that of 21.87% was a district, and that of 4.69% was a village. The majority of patients (93.25%) had a low family income level. The average number of children was 3.28, and readership was 1.47. The rate of working mothers was 1.56%.Conclusion:It was concluded that the cleft lip and palate patient group had lower economic and sociocultural levels. For this purpose, raising awareness of parents and providing financial support to families are required because of the long-term treatment process. It was thought that the long-term treatment process of these patients in a single-unit authority with the guidance of universities would be appropriate for better patient follow-up and inventory. Otherwise, as seen in this study, contact cannot be established after a while and some problems can arise with regard to follow-up. Lack of communication can lead to the formation of more difficult patients with growth and development

Does the Seating Force Affect the Shear Bond Strength of Brackets? An InVitro Study

Objective:The purpose of this study was to observe two different seating forces on conventional and self-ligating brackets using shear bond strength (SBS).Methods:The study material consisted of 48 recently extracted human premolars divided into four groups: Group I, conventional bracket (Master series, AO) 100 g seating force applied; Group II, conventional bracket (Master series, AO) 200 g seating force applied; Group III, self-ligating bracket (Empower, AO) 100 g seating force applied; and Group IV, self-ligating bracket (Empower, AO) 200 g seating force applied. All teeth were bonded with Transbond XT by the same operator. Following the bonding procedure, all teeth were stored in deionized water at 37°C for 30 days, and they were thermal cycled. A universal testing machine was used to obtain the SBS records. The Kruskal–Wallis statistical test was used to determine the significant differences in SBS between the four groups, and the Mann–Whitney U test with Bonferroni correction was used to compare the subgroups.Results:The mean shear bond strength was 15.70 MPa for Group I, 13.97 MPa for Group II, 8.38 MPa for Group III, and 8.31 MPa for Group IV. Significant differences in the SBS values were recorded between the self-ligating groups and conventional bracket groups. Seating forces on the brackets did not show any differences among the groups.Conclusion:Within the limitations in this study, 100 g and 200 g forces can be applied because both seating forces showed acceptable SBS results

Temperature Changes of Pulp Chamber during In Vitro

The use of lasers has been suggested for orthodontists to fabricate or repair orthodontic appliances by welding metals directly in the mouth. This work aimed to evaluate the temperature changes in the pulp chamber during welding of an orthodontic wire to an orthodontic molar band using Nd : YAG laser in vitro. A freshly extracted human third molar with eliminated pulpal tissues was used. J-type thermocouple wire was positioned in the pulp chamber. A conductor gel was used in the transferring of outside temperature changes to the thermocouple wire. An orthodontic band was applied to the molar tooth and bonded using light cured orthodontic cement. Twenty five mm length of 0.6 mm diameter orthodontic stainless steel wires was welded to the orthodontic band using Nd : YAG laser operated at 9.4 watt. Temperature variation was determined as the change from baseline temperature to the highest temperature was recorded during welding. The recorded temperature changes were between 1.8 and 6.8°C (mean: 3.3 ± 1.1°C). The reported critical 5.5°C level was exceeded in only one sample. The results of this study suggest that intraoral use of lasers holds great potential for the future of orthodontics and does not present a thermal risk. Further studies with larger samples and structural analysis are required

The Effects of Using Plaque-Disclosing Tablets on the Removal of Plaque and Gingival Status of Orthodontic Patients

Objective:The aim of this study was to investigate the effects of using plaque-disclosing tablets (PDTs) on the plaque and gingival index scores of patients wearing fixed orthodontic appliances.Methods:In group A (n=16), the subjects were motivated by conventional oral hygiene instructions, including verbal information about tooth brushing. The patients in group B (n=17) were motivated using PDTs used in the dentists’ office to show the locations of biofilms in addition to the instructions given to group A. Both the chairside demonstration performed in group B and the at-home use of disclosing tablets were undertaken by those in group C (n=15). The periodontal parameters were recorded before applying the fixed appliance (T0) and after the first (T1) and third (T2) months.Results:The plaque index (PI) scores of group C were significantly lower (p0.05) were found between groups A and B. The gingival status of group C did not change significantly (p>0.05) over the three months and was statistically lower when compared to groups A and B.Conclusion:The use of PDTs at home may enhance the plaque removal efficiency and gingival health stability, by facilitating self-examination

Effects of Debonding on Oral Mal odor

The objective of this study was to evaluate the affect of debonding on oral malodor. This study consists of three groups. The first group (debonding group) included 20 subjects with brackets and would be debonded in a month. The second group (bracket group) included 20 subjects who still undergone orthodontic treatment with brackets. The last group is a control group who did not receive orthodontic treatment. Oral malodor measurements, Gingival and Plaque Index scores were recorded in each group by same periodontist. Measurements were taken in first study groups before debonding (T1), 1 week after debonding (T2) and 4 weeks after bonding (T3). At the same time the measurements were applied to the second and control group. Data's were evaluated with three way ANOVA test. Bonferroni test were assessed when significant differences between the measurements were exist. Mann-Whitney U- test was used to compare both groups. Oral malodor, significantly decreased after debonding (P0.05). Control group did not show differences in all measurements. The comparison between groups showed significant differences between groups (P<0.05). Bonding brackets cause to increase on oral malodor. However, after debonding immediately oral malodor reached to the acceptable scores. Oral malodor could be another indicator to evaluate the oral health as Gingival and Plaque index scores

The Socio-Demographic Evaluation of Patients that Discontinue Orthodontic Treatment

This study aims to define the general profile of the patients who were started to treat and then gave up their treatment. In addition we also aim to take the precautions in accordance with the results. To carry out the study, information cards of 42 patients who gave up their treatments between 2001 and 2003 were used. The mean age of girls who gave up the treatment is 14.5 and that of the boys is 12.4. It is seen that there is no statistically significant difference between the ages and gender of the patients. (p>0.05). When we looked at the duration of the patients waited for being taken into treatment, there was no difference between the male and female patients (P>0.05) and the average duration was seen to be 9.28 months. 81% of the patients waited for less than one year and 19 % of them waited for more than one year. On contrary to the expectations, the duration of waiting for treatment's getting longer has a positive effect, not a negative one. It is easier to accept the negative effects of treatment for the patients who have to wait for a certain amount of time for treatment

The Cardiac effect of Rapid Maxillary expansion Patients with Maxillary Deficiency

<p><strong>Background:</strong> The aim of this study is to evaluate the affect of rapid maxillary expansion (RME) on cardiologic parameter.</p><p><strong>Methods:</strong> 12 patients (4 male and 8 females) with maxillary deficiency and bilateral cross-bite were selected to this study group. Before RME 24 h Holter monitoring of electrocardiography was used on patients. The prevalence analysis of arrhythmias, mean heart rate (MHR) and ventricular premature contraction (VPC) analysis was assessed over a 24-h period. Six months after achieving successfully expansion the Holter procedure was repeated again on patients.</p><p><strong>Results:</strong> VPC count per day and MHR, detected on 24 h ambulatory electrocardiography, showed significant statistical difference was present in pre and post-treatment periods. (VPC; 54.25±69.56/day, 6.50±5.98/day p&lt;0.05; MHR; 108±12/day, 82±8/day p&lt;0.05: respectively)</p><p><strong>Conclusion:</strong> The patients with maxillary deficiency may have been a potential with cardiologic abnormalities. The expansion may improve the cardiac problems by expansion.</p

Effects of orthodontic treatment on patients' dental anxiety and oral health knowledge

Bu çalışmanın amacı, ortodontik tedavinin bireylerin diş tedavisi ile ilgili kaygı ve oral sağlık bilgisi üzerine olan etkilerini araştırmaktır. Çalışma ortodontik tedavi safhalarına gore 4 gruba ayrılmış toplam 184 birey üzerinde yürütüldü. Birinci gurup ortodontik tedavi olmak için .sırada bekleyen 47 bireyden; İkinci gurup ortodontik tedavinin ilk yılında ( I-T2 ay) bulunan 44 bireyden, Üçüncü grup ortodontik tedavisi 12-26 aydır devam etmekte olan 46 bireyden, Dördüncü gurup ise ortodontik tedavisi bitmiş 47 bireyden oluşturuldu. Dişsel kaygı düzeyi, uyarlanmış dişsel kaygı ölçeği ile saptandı. Bireylerin ağız sağlığı ile ilgili bilgi düzeyi ise koruyucu tedavi, semptom veet-yolpjiye yönelik olarak hazırlanmış bir anketle değerlendirildi. İstatistiksel değerlendirmede ki-kare testi kullanıldı. Birinci gruptaki bireylerin kaygı seviyesi dördüncü gruptaki bireylere göre belirgin bir şekilde yüksek olarak bulundu. Birinci gruptakilerin haricindeki bireylerin çoğu dişeti kanamasının periodontal hastalık belirtisi olduğunu biliyordu (sırasıyla %81.8, %84.7, %80.1), ki bu oran birinci' gruptaki bireyler için %63.8 di. Tüm grupla rdakr .bireylerin koruyucu tedavi hakkındaki bilgileri, aynı olmasına rağmen, periodontal hastalığın belirtileri hakkında ortodontik tedavisi bitmiş veya ortodontik tedavi görmekte olan bireyler daha fazla bilgili olduğu görülmüştür. Periodontal hastalığın beliıtileri hakkında en fazla, bilgiye sahip olan 3. guruptaki bireylerin %19.6 ve %52.1y i dental plağı saptayabiliyor ve buna neyin sebep olacağını da biliyordu. Ortodortlik tedavi bazı safhalarında farklı dental uygulamaları da içerdiği için dental kaygı üzerinde pozitif bir etkiye sahiptir. (Türk Ortodonti Dergisi 2009;22:228-235)The aim of this study was to investigate effects of orthodontic treatment on both anxiety and oral health knowledge of orthodontic patients. The study was carried out in 184 patients. Four groups were formed according to the stage o f orthodontic treatment. Group I consisted of 47 individuals selected from patients who were awaiting orthodontic treatment; groups 2 and 3/ comprised 44 and 46 individuals who had been undergoing orthodontic treatment for a period of I-12 and 12-26 months respectively, and group 4, 47 orthodontically treated individuals. The modified Dental Anxiety Scale was used to measure denial anxiety. Oral health knowledge was assessed using several questions concerning etiology, symptoms and prevention. Chi-squire test was used for statistical assessment The anxiety level of patients in group 1 was significantly higher than the subjects in group 4. Patients in groups 2,. .3 and 4 mostly knew that gum bleeding is a sign of periodontal disease (81.8, 84.7, 80.1 per cent respectively); and this was 63.8 per cent for group 7. Patients in all gro-. ups were aware how to prevent, however mote who were undergoing or had completed treatment were more informed about symptoms of periodontal disease. Only 19.6 and 52.1 per cent of subjects in group 3 had the knowledge to identify denial plaque and what it can cause respectively; which was the highest ratio among the groups. Orthodontic treatment involves some degree of exposure, consequently creates a positive influence on patients' anxiety and periodontal health knowledge. (Turkish / Ort-hod 2009; 22:228-238