scholarly journals Prospective clinical study of transverse development with orthodontics with self-ligating brackets.

2020 ◽  
Vol 33 (2) ◽  
pp. 112-116
Author(s):  
Maria Mateu ◽  
Sandra Benítez-Rogé ◽  
Diana Calabrese ◽  
María Lumi ◽  
Marina Marina ◽  
...  
Keyword(s):  
Clinical Study ◽  
Average Distance ◽  
Nickel Titanium ◽  
Dental Arch ◽  
Prospective Clinical Study ◽  
Transverse Diameter ◽  
Low Friction ◽  
Thermally Activated ◽  
Paired Samples ◽  
Before And After

Orthodontics with low friction, low force, passive self-ligating brackets produces alveolar-dental remodeling, resulting in an increase in the transverse diameter of the dental arches, especially in the premolar sector. The aim of this study was to compare the modifications of the transverse diameter in the pre- and post-dental alignment cast models with orthodontics with passive self-ligating brackets in patients with moderate to severe dental discrepancy. The study included 28 patients of both sexes aged 16 to 48 years with dental discrepancies between -6 and -16 mm, treated with self-ligating Damon brackets and thermally activated Nickel- Titanium-Copper arches. With a digital pachymeter, Mitutoyo brand, five measurements were taken per dental arch: distance between canines (C), first premolars (1PM), second premolars (2 PM), first molars (1M) and second molars (2M), before and after orthodontic alignment. The variations were statistically evaluated by Student T Test for paired samples. Average distance between teeth varied with dental alignment in both jaws. The greatest increases in transverse diameter were recorded in the premolar areas. Minor though statistically significant variations also occurred in the 2M of the maxilla and in the C of the mandible In alignment with passive self-ligating brackets, there is an increase in the transverse diameter due to the development of the dental arches, mainly in the premolar sector of both jaws and also at the level of the canines in the mandible.

scholarly journals The Effect of Q-Switched Nd:YAG 1064 nm/532 nm Laser in the Treatment of Onychomycosis In Vivo

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Kostas Kalokasidis ◽  
Meltem Onder ◽  
Myrto-Georgia Trakatelli ◽  
Bertrand Richert ◽  
Klaus Fritz
Keyword(s):  
Clinical Study ◽  
Treatment Time ◽  
Prospective Clinical Study ◽  
Self Evaluation ◽  
Time Period ◽  
Level Of Satisfaction ◽  
Before And After ◽  
532 Nm

In this prospective clinical study, the Q-Switched Nd:YAG 1064 nm/532 nm laser (Light Age, Inc., Somerset, NJ, USA) was used on 131 onychomycosis subjects (94 females, 37 males; ages 18 to 68 years). Mycotic cultures were taken and fungus types were detected. The laser protocol included two sessions with a one-month interval. Treatment duration was approximately 15 minutes per session and patients were observed over a 3-month time period. Laser fluencies of 14 J/cm2were applied at 9 billionths of a second pulse duration and at 5 Hz frequency. Follow-up was performed at 3 months with mycological cultures. Before and after digital photographs were taken. Adverse effects were recorded and all participants completed “self-evaluation questionnaires” rating their level of satisfaction. All subjects were well satisfied with the treatments, there were no noticeable side effects, and no significant differences were found treating men versus women. At the 3-month follow-up 95.42% of the patients were laboratory mycologically cured of fungal infection. This clinical study demonstrates that fungal nail infections can be effectively and safely treated with Q-Switched Nd:YAG 1064 nm/532 nm laser. It can also be combined with systemic oral antifungals providing more limited treatment time.

scholarly journals Comparative Analysis of Periodontal Pain According to the Type of Precision Orthodontic Appliances: Vestibular, Lingual and Aligners. A Prospective Clinical Study

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 379
Author(s):  
Laura Antonio-Zancajo ◽  
Javier Montero ◽  
Daniele Garcovich ◽  
Mario Alvarado-Lorenzo ◽  
Alberto Albaladejo ◽  
...  
Keyword(s):  
Clinical Study ◽  
Pain Intensity ◽  
Short Form ◽  
Study Groups ◽  
Mcgill Pain Questionnaire ◽  
Prospective Clinical Study ◽  
Orthodontic Appliances ◽  
Low Friction ◽  
Different Types ◽  
Lower Arch

The objective of this prospective clinical study was to analyze the pain (intensity, location and type) that patients presented after the placement of different types of orthodontic appliances: conventional, low friction, lingual and aligners. The sample consisted of 120 patients divided into four groups: conventional (CON), low friction (LF), lingual (LO) and aligners (INV). The participants were given the Short-Form McGill Pain Questionnaire (Ortho-SF-MPQ), where they had to record the pain intensity (no pain, mild, moderate or intense) and the periodontal location at different time points, from the first 4 h to 7 days after the start of treatment. In all the study groups, the most frequent location was both anterior arches, with maximum values between 56.7% (CON group at 24 h) and 30% (LO group at 4 h). The “whole mouth” and “complete lower arch” locations were indicated only by the patients in the lingual group. Regarding pain intensity, the patients reported a higher percentage of mild–moderate pain during the first 3 days of treatment (96.7% in LO at 4 h, 86.7% in CON, 83.3% in LF and 90% in INV at 24 h); later, the reported pain decreased to no pain/mild pain, especially in the lingual group, until reaching values close to zero at 7 days post-treatment. The most frequent type of pain was acute in the low friction and lingual groups (with maxima of 60% and 46.7% at 24 h, respectively). On the contrary, in the conventional (36.7% at 4 h) and Invisalign (40% at 24 h) groups, the sensitive type was the most frequent. There are differences regarding periodontal pain in its intensity, location and type according to the use of different orthodontic techniques.

scholarly journals Pain and Oral-Health-Related Quality of Life in Orthodontic Patients During Initial Therapy with Conventional, Low-Friction, and Lingual Brackets and Aligners (Invisalign): A Prospective Clinical Study

2020 ◽  
Vol 9 (7) ◽  
pp. 2088 ◽  
Author(s):  
Laura Antonio-Zancajo ◽  
Javier Montero ◽  
Alberto Albaladejo ◽  
Maria Dolores Oteo-Calatayud ◽  
Alfonso Alvarado-Lorenzo
Keyword(s):  
Quality Of Life ◽  
Clinical Study ◽  
Oral Health ◽  
Prospective Clinical Study ◽  
Health Related Quality ◽  
Low Friction ◽  
Related Quality ◽  
Health Related ◽  
Lingual Brackets

The aim of this study was to compare pain and its relationship with the oral quality of life of patients with different types of orthodontic appliances: conventional and conventional low-friction brackets, lingual brackets, and aligners. A prospective clinical study was carried out with a sample size of 120 patients (54 men, 66 women) divided into 4 groups of 30 patients each. The modified McGill questionnaire was used to measure pain at 4, 8, and 24 h and 2, 3, 4, 5, 6, and 7 days after the start of treatment, and the Oral Health Impact Profile-14 (OHIP-14) questionnaire was used to measure the oral-health-related quality of life (OHRQoL) in the first month of treatment. The maximum peak of pain was obtained between 24 and 48 h of treatment. It was found that patients in the lingual orthodontic group described lower levels of pain at all times analyzed, and their scores in the total OHIP-14 indicated less impact on their oral quality of life (1.3 ± 1.2, p < 0.01) compared with the other groups analyzed. There was little difference with the aligners group (Invisalign) (1.7 ± 1.9, p < 0.01). The technique used influences the pain and quality of life of patients at the start of orthodontic treatment.

scholarly journals Variation in form of mandibular, light, round, preformed NiTi archwires

2016 ◽  
Vol 86 (5) ◽  
pp. 796-803 ◽  
Author(s):  
Naomi Saze ◽  
Kazuhito Arai
Keyword(s):  
Normal Subjects ◽  
Nickel Titanium ◽  
Dental Arch ◽  
Arch Form ◽  
Before And After ◽  
The Mean ◽  
The Individual ◽  
Normal Japanese ◽  
Dental Arch Form ◽  
Medium Group

ABSTRACT Objective:  To evaluate the variation in form of nickel-titanium (NiTi) archwires by comparing them with the dental arch form of normal Japanese subjects before and after placing them in the first molar tubes. Materials and Methods:  The mandibular dental casts of 30 normal subjects were scanned, and the dental arch depths and widths from the canine to the first molar were measured. Standardized images of 34 types of 0.016-inch preformed NiTi archwires were also taken in a 37°C environment, and the widths were measured and then classified by cluster analysis. Images of these archwires placed in a custom jig with brackets attached at the mean locations of the normal mandibular central incisors and first molar were additionally taken. The widths of the pooled and classified archwires were then compared with the normal dental arch widths before and after placement in the jig and among the groups (P &lt; .05). Results:  The archwires were classified into three groups: small, medium, and large. The archwire widths in the small and medium groups were narrower than those at all examined tooth widths, except in the case of the premolars of the medium group. After placement in the jig, the pooled archwire widths were found to be significantly narrower and wider at the canine and second premolar, respectively, than at the dental arch, but not in the individual comparisons between groups. Conclusion:  The variation observed in the mandibular NiTi archwire forms significantly decreased following fitting into the normal positions of the first molars.

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