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Treatment considerations for bleaching and bonding white lesions in the anterior dentition.

White lesions occur commonly on the anterior teeth. There are numerous reasons why these lesions appear in the anterior dentition, and these reasons will be discussed in detail. For some patients, these white lesions may be considered unsightly and the patients may seek treatment to have them removed; other patients are not concerned about their presence on their anterior teeth. Some of the white lesions are caused by demineralization and occur because of poor oral hygiene. For the purpose of this article, developmental white lesions will be discussed in detail, along with the options for trea

Liposomal bortezomib is active against chronic myeloid leukemia by disrupting the Sp1-BCR/ABL axis.

BACKGROUND: Lateral mass screw fixation is the common method of fixation for an instrumented posterior fusion of the subaxial cervical spine. While screws have established efficacy, adhesive material that can be applied to the bony surface may be a promising alternative strategy owing to ease of application, size, and avoidance of screw loosening, malposition, or fracture. METHODS: Eighteen fresh frozen human cadaveric subaxial cervical vertebrae were prepared for biomechanical testing. In each vertebra, 1 side underwent lateral mass screw fixation, and the contralateral side underwent compos

Five years experience with a new intraoral maxillary distraction device (RID).

Maxillary distraction osteogenesis is well established for the treatment of severe retromaxilla. We report our experience since 2004 of the treatment of 19 patients using a new intraoral maxillary distraction device. Maxillary advancement was successful in all patients with mean advancement of 9.6mm (range 4-17) measured at a point in lateral cephalograms. The new device limited surgical exposure and the amount of materials implanted, and improved control in every phase of the distraction. It was psychologically accepted by patients and was more comfortable than existing devices.

Physico-mechanical and antimicrobial properties of an elastomeric ligature coated with reduced nanographene oxide-nano curcumin subjected to dual-modal photodynamic and photothermal inactivation against Streptococcus mutans biofilms.

BACKGROUND: White spot lesions (WSLs) are a common side effect of fixed orthodontic treatment. Streptococcus mutans is the primary causative … n be used to inhibit the formation of S. mutans biofilms on the coated elastomeric ligatures around orthodontic brackets.

Dose-dependent effects of electron beam irradiation on dental materials: a systematic review of in vitro evidence.

BACKGROUND: Electron beam irradiation (EBI) is a non-chemical technique proposed for modifying dental materials, but evidence is contradictory. Some studies report gains in mechanical performance, others document discoloration, structural breakdown, or cytotoxicity at higher doses. OBJECTIVES: To systematically review effects of EBI on mechanical strength, surface characteristics, chemical stability, and biological responses in dental materials, and identify dose ranges where effects shift from beneficial to harmful. METHODS: PubMed, Scopus, and Web of Science were searched for laboratory st

Enamel demineralization and bracket bond strength when etching with acid and /or Er:YAG laser.

BACKGROUND: Enamel etching for brackets is usually done with phosphoric acid. Er:YAG lasers have been recently used for this purpose with conflicting results. The effects of lasers on tooth demineralization and the effects of different combinations of laser treatments and bonding agents were evaluated in this study. METHODS: The enamel contents of fluorine, calcium oxide and phosphorus pentoxide (P(2) O(5)) were analysed using acid etching, laser treatment or both. The tensile bond strength of metallic and ceramic brackets using Transbond XT and Fuji Ortho LC were also tested, using acid etch

Long-term stability of LeFort III distraction osteogenesis with a rigid external distraction device in a patient with Crouzon syndrome.

A 6-year-old boy, diagnosed with Crouzon syndrome, had moderate exorbitism, a concave profile, an anterior crossbite of -4.0 mm, and a skeletal Class III jaw-base relationship caused by midfacial hypoplasia. At age 8 years 9 months, a LeFort III osteotomy was performed, and distraction osteogenesis was immediately started with the rigid external distractor system. The midface was advanced approximately 10.0 mm for 6 days, including overcorrection. After the distraction, a reverse headgear was used for 6 years to prevent relapse and to accelerate expected growth. At age 16 years 5 months, after

Reliability of two measurement indices for gingival enlargement.

BACKGROUND AND OBJECTIVE: The objective of this study was to analyze the concordance of the vertical gingival overgrowth index (GOi) and the … stical concordance analysis. MATERIAL AND METHODS: Twelve plaster casts from patients who had worn orthodontic brackets, and who had different degrees of chronic inflammatory gingival enlargement, were analyzed. Three previously trained examiners registered twice the degree of buccal overgrowth, using the GOi and MBi, in all cast models with a minimum interval of 7 d …

[Analysis of the discrepancy of crown-root morphology of central incisors among different skeletal malocclusion using cone-beam CT].

Objective: To investigate the discrepancy of crown-root morphology of upper and lower central incisors in adult patients with different skeletal malocclusions using cone-beam CT (CBCT). Methods: Patients visiting the Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University from January 2015 to December 2017 were selected, including 108 cases (52 males, 56 females, aged from 18 to 30 years, mean age 25.8 years). According to CBCT data and cephalometric analysis, 66 patients with average angle were selected as the sagittal skeletal group, including 24 Class Ⅰ patients, 20 Cl

A comparative analysis of optical and conventional axiography for the analysis of temporomandibular joint movements.

STATEMENT OF PROBLEM: Currently available systems for pantographic tracing are heavy, bulky, and can interfere with jaw movements. PURPOSE: This study describes the development and clinical application of optoelectronic axiography designed to overcome system inherent problems of conventional bulky frame-based registration axiography. The purpose of this study is the comparison of the newly developed system and conventional axiography. MATERIAL AND METHODS: Three-dimensional recordings of condylar pathways were acquired by means of infrared digitizers interfaced to newly developed software. T

An in vitro study of microleakage of occlusal composite restorations polymerized by a conventional curing light and a PAC curing light.

With the increase in usage of bonded dentistry procedures, so comes the development of advanced technology to polymerize it. The purpose of … ight.). It appears the PAC light would be best utilized to cure sealants and/or possibly polymerize orthodontic brackets. The conventional curing light appears to remain the best choice for polymerizing class I composite restorations.

Stability of mandibular setback surgery with and without presurgical orthodontics.

PURPOSE: The purpose of this study was to compare stability after mandibular setback surgery in patients with skeletal Class III malocclusion with and without presurgical orthodontics. MATERIALS AND METHODS: This retrospective cohort study included consecutive patients with skeletal Class III malocclusion who underwent only mandibular surgery. Patients treated with the surgery-first approach without presurgical orthodontics (SF group) were compared with a control group (conventional surgery with presurgical orthodontics; CS group) using lateral cephalograms taken preoperatively, immediately p

Orthodontic treatment of periodontally involved teeth after tissue regeneration.

In this consecutive series, 14 patients with severe intrabony defects and pathologic tooth migration were treated with guided tissue regeneration (GTR) and subsequent orthodontic therapy in an attempt to evaluate the validity of this multidisciplinary approach. Probing pocket depths (PPD), clinical attachment levels (CAL), and gingival recessions were assessed at baseline, 1 year after GTR, and at the end of orthodontic therapy. Radiographs were obtained at all time points. Esthetic parameters were recorded with the papilla presence index (PPI). Statistical analyses were carried out to compare

The Effect of Er:YAG Laser Therapy as an Adjunct to Surgical Treatment Compared to Latter Alone in Managing Medication-Related Osteonecrosis of the Jaw: A Randomised Controlled Clinical Trial.

OBJECTIVE: The aim of this double-blind randomised controlled clinical trial was to assess the effectiveness of the Er:YAG laser as an adjunct to conventional surgical treatment compared to surgical treatment alone in managing medication-related osteonecrosis of the jaw (MRONJ). METHODS: Sixty-five patients diagnosed with stage II or III MRONJ were randomly allocated into 2 groups: a control group (n = 30) treated using conventional surgery alone and a test group (n = 35) treated using conventional surgery with adjunctive Er:YAG laser. All patients received 3-day preoperative and 14-day posto

Совпадение в полном тексте источника
… The effect of Er:YAG laser on a shear bond strength value of orthodontic brackets to enamel—a preliminary study. Materials. 2021;14(9) doi: 10.3390/ma14092093. 79. Vescovi P., Meleti M., Merigo E., et al. Case series of 589 tooth extractions in patients under bisphosphonates therapy. …

Saliva как матрица для терапевтического мониторинга наркотиков и биомаркеров заболеваний у детей и подростков.

Saliva — более доступная, менее напряженная и менее дорогостоящая биологическая матрица, чем кровь, и она может применяться в терапевтическом мониторинге лекарственных средств (ПТМ). Концентрации слюны отражают фармацевтический активный ненавязанный препарат. В этом обзоре содержится последняя информация о слюне в качестве матрицы для лечебного контроля за наркотиками и определения биомаркеров у младенцев, детей и подростков. К октябрю 2024 года по базе данных PubMed были проведены обыски литературы, 64 исследования были включены в TDM, стероиды, добавки, биомаркеры заболеваний, стоматология,

Polyphenolic natural products as photosensitizers for antimicrobial photodynamic therapy: recent advances and future prospects.

Antimicrobial photodynamic therapy (aPDT) has become a potent contender in the fight against microbial infections, especially in the context of the rising antibiotic resistance crisis. Recently, there has been significant interest in polyphenolic natural products as potential photosensitizers (PSs) in aPDT, given their unique chemical structures and inherent antimicrobial properties. Polyphenolic natural products, abundant and readily obtainable from natural sources, are generally regarded as safe and highly compatible with the human body. This comprehensive review focuses on the latest develo

Совпадение в полном тексте источника
… Its multifunctional properties extend beyond reducing inflammation and eradicating microbial biofilms to preserving adhesive strength in orthodontic brackets ( 135 , 136 ). …

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… : Dental composites are commonly used for fixing orthodontic brackets to teeth. … Orthodontic brackets can effectively be implanted on porcine vertebra to assess fixation stability. Dental composite can be used as a type of vertebral fixation in a porcine model. Composite surface area correlates with fixation strength. …

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