Objective: To evaluate and compare the effects of enamel microabrasion, casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), and their combination on the shear bond strength (SBS) of orthodontic brackets bonded to demineralized enamel surface.
Materials and Methods: One hundred human first premolar teeth were randomly allocated to one of five groups. Group I was considered as the control of other groups. For the remaining groups, demineralization was performed via solutions. In group II, brackets were directly bonded to the demineralized enamel surface. CPP-ACP was applied in group ...Daha fazlası
OBJECTIVE: The aim of this study is to evaluate dentoskeletal effects of Herbst and Twin Block (TB) appliance therapies in Skeletal Class II malocclusion.
SUBJECTS AND METHODS: Herbst group consisted of 11 girls and 9 boys (mean age = 12.74±1.43 years), TB group comprised of 10 girls and 10 boys (mean age = 13.0±1.32 years), and control group included 9 girls and 11 boys (mean age = 12.17±1.47 years). Mean treatment/observation times were 15.81±5.96 months for Herbst, 16.20±7.54 months for TB, and 15.58±3.13 months for control group. Pre-treatment (T0) and post-treatment (T1) lateral cephal ...Daha fazlası
Introduction: The aim of this study was to evaluate the prevalence of bacteremia associated with an orthodontic
stripping procedure. Methods: The study included 29 orthodontic patients (mean age, 18.2 6 3.4 years). We
used a standardized stripping procedure: a perforated stripping disk with a contra-angle hand piece was used
at a low speed (\15,000 rpm; 10 seconds) on the mandibular anterior teeth. Blood samples were collected
by inserting a cannula into the left antecubital fossa. A baseline sample was taken before treatment, and
a second sample was taken after the stripping procedure. T ...Daha fazlası
INTRODUCTION:
The aim of this study was to test the null hypothesis that increased irregularity of the mandibular incisors is associated with a reduction in the alveolar support on cone-beam computed tomographic sections.
METHODS:
From a sample of 1100 digital volumetric tomographs, 125 tomographs of subjects with Class I malocclusion (mean age, 21.6 ± 4.8 years) were selected for this study. An irregularity index was used to categorize these tomographs as having mild, moderate, or severe crowding. All tomographs were taken by using an iCAT (Imaging Sciences International, Hatfield, Pa) ima ...Daha fazlası
Amaç: Bu çalışmada MTA-Fillapex'in radyoopasitesinin dijital görüntüleme tekniği kullanılarak, Gri MTA ile karşılaştırmalı değerlendirilmesi amaçlandı. Gereç ve Yöntemler: Çalışmada Gri MTA Angelus'un ve MTA-Fillapex'in (Angelus, Londrina, Brezilya) opazitesi değerlendirildi. Örneklerin yerleştirilmesi için 1 mm derinliğinde ve 5 mm çapında 5 akrilik levha hazırlandı. Akrilik levhalar üzerinde ayrıca alüminyumdan yapılmış penetremetre yerleştirilerek opasite yoğunluğu hesaplandı. Radyografik değerlendirme, direkt dijital görüntüleme tekniği ile yapıldı. Tüm radyograflar sıkıştırma algoritması ...Daha fazlası
Çocuk ve adolesanlarda konjenital olarak eksik veya travma nedeni ile kaybedilmiş daimi kesici dişlerden kaynaklanan problemlerin tedavisi için farklı yaklaşımlar mevcuttur. Bu olgu raporunda, alt ön keser dişleri konjenital olarak eksik olan hastaya uygulanan polietilen fiber ile güçlendirilmiş rezin tutuculu köprü sunumu amaçlanmıştır. On iki yaşındaki kız çoğuğu, bölümümüze diş eksikliğine bağlı estetik problem nedeni ile getirildi. Ağız içi ve radyolojik muayenesinden alt ön keser dişlerinin konjenital olarak eksik olduğu belirlendi. Komşu yan keser dişler bu bölgeye diastemalı olarak yerl ...Daha fazlası
The aim of this experimental study was to evaluate
the effects of light-emitting diode-mediated-photobiomodulation
therapy (LPT), on the rate of orthodontic tooth movement (TM)
and orthodontically induced root resorption, in rats. Twentymale
12-week-oldWistar rats were separated into two groups (control
and LPT) and 50 cN of force was applied between maxillary left
molar and incisor with a coil spring. In the treatment group, LPT
was applied with an energy density of 20 mW/cm2 over a period
of 10 consecutive days directly over the movement of the first
molar teeth area. The distance b ...Daha fazlası
Objective: To evaluate the changes in cortical bone thickness, alveolar bone
height, and the incidence of dehiscence and fenestration in the surrounding
alveolar bone of posterior teeth after rapid maxillary expansion (RME) treatment
using cone-beam computed tomography (CBCT). Methods: The CBCT records of
20 subjects (9 boys, mean age: 13.97 ± 1.17 years; 11 girls, mean age: 13.53 ±
2.12 year) that underwent RME were selected from the archives. CBCT scans had
been taken before (T1) and after (T2) the RME. Moreover, 10 of the subjects had
6-month retention (T3) records. We used th ...Daha fazlası
Introduction: The aim of this prospective clinical trial was to assess the effects of varying force directions on the
dynamic measurement of natural head position and orofacial airway dimensions of Class III patients during maxillary
orthopedic protraction compared with an untreated control group. Methods: The conventional facemask
group comprised 15 patients (8 girls, 7 boys; mean age, 9.6 6 1.3 years), the modified facemask group comprised
15 patients (7 girls, 8 boys; mean age, 9.5 6 1.5 years), and the control group comprised 15 subjects
(7 girls, 8 boys; mean age, 9.8 6 1.6 years). N ...Daha fazlası
Objective: To evaluate lower incisor position and bony support between
patients with Class II average- and high-angle malocclusions and compare
with the patients presenting Class I malocclusions. Methods: CBCT records of
79 patients were divided into 2 groups according to sagittal jaw relationships:
Class I and II. Each group was further divided into average- and high-angle
subgroups. Six angular and 6 linear measurements were performed. Independent
samples t-test, Kruskal–Wallis, and Dunn post-hoc tests were performed for
statistical comparisons. Results: Labial alveolar bone th ...Daha fazlası
Introduction: The aim of this study was to determine the peri-miniscrew implant crevicular fluid receptor
activator of nuclear factor-lB ligand (RANKL) and osteoprotegerin (OPG) levels around loaded and unloaded
miniscrew implants at different time intervals. Methods: Twenty loaded and 16 unloaded miniscrew implants
were included in this study. All miniscrew implants were placed bilaterally between the maxillary second premolars
and first molars as anchorage units for canine distalization. Peri-miniscrew implant crevicular fluid was taken
from the mesiobuccal aspects of the loaded and unl ...Daha fazlası
Objective: To determine whether there is any difference between the cleft and non-cleft sides of the mandible
in unilateral cleft lip and palate (UCLP) patients, or the right and left sides in control patients; and
to determine if there is any difference between the mandibular asymmetry of UCLP patients and that of
control patients. Methods: We examined cone-beam computed tomography (CBCT) scans of 15 patients
with UCLP and 15 age- and gender-matched control patients. We evaluated 8 linear, 3 surface, and 3 volumetric
measurements and compared the cleft/non-cleft sides of UCLP patients an ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.