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In-chair bleaching

Roche Hayward, Yusuf Osman, Sias R Grobler
UNLABELLED: The purpose of this study was to evaluate the efficacy of a Light Emitting Diode (LED) System (BriteWhite) on tooth bleaching. METHOD: eeth 11 and 21 of twenty one subjects were treated in the chair with a LED light and 44% carbamide peroxide gel, followed by an at-home treatment period of 14 days with 35% carbamide peroxide. The color of the teeth was measured with a spectrophotometer (L*; a*; b*) before treatment (control) and after the above mentioned two stages...
2012: Open Dentistry Journal
Na Fu, Jeffrey M Baumes, Easwaran Arunkumar, Bruce C Noll, Bradley D Smith
Mechanical encapsulation of fluorescent, deep-red bis(anilino)squaraine dyes inside Leigh-type tetralactam macrocycles produces interlocked squaraine rotaxanes. The surrounding macrocycles are flexible and undergo rapid exchange of chair and boat conformations in solution. A series of X-ray crystal structures show how the rotaxane co-conformational exchange process involves simultaneous lateral oscillation of the macrocycle about the center of the encapsulated squaraine thread. Rotaxane macrocycles with 1,4-phenylene sidewalls and 2,6-pyridine dicarboxamide bridging units are more likely to adopt boat conformations in the solid state than analogous squaraine rotaxane systems with isophthalamide-containing macrocycles...
September 4, 2009: Journal of Organic Chemistry
Volkan Arikan, Saziye Sari, Hayriye Sonmez
Nowadays, both children and parents place a greater value on appearance and aesthetics than has previously been the case. Primary teeth with intrinsic discoloration may be treated by a number of methods, including facings and abrasion. However, dental bleaching may offer a safer alternative that can be completed with less chair time and without harming dental structures. This case report describes the treatment of a darkened primary tooth of a 4-year-old boy with sodium perborate using the walking bleach technique and its 1-year clinical and radiographical follow-up...
May 2009: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Dirk Ziebolz, Christian Hannig, Thomas Attin
PURPOSE: To evaluate the influence of a desensitizing agent (VivaSens) on efficacy of a paint-on bleaching agent (VivaStyle Paint On Plus). METHODS: Bleaching was performed for 7 days with VivaStyle Paint On Plus. The varnish was applied twice a day for 10 minutes each. 80 subjects were included in the study and randomly distributed in two groups (n = 40) according to exposed cervical dentin and perceived hypersensitivities. Group A used VivaStyle without VivaSens while Group B used VivaStyle Paint On Plus after a single application of VivaSens...
April 2008: American Journal of Dentistry
Bruno Botta, Ilaria D'Acquarica, Giuliano Delle Monache, Laura Nevola, Danila Tullo, Franco Ugozzoli, Marco Pierini
Resorc[4]arene octamethyl ethers 1-3, when treated with NOBF4 salt in chloroform, form very stable 1:1 nitrosonium (NO+) complexes, which are deeply colored. The complexation process is reversible, and the complexes dissociate and bleach upon addition of methanol or water, to give the starting macrocycles. Resorc[4]arenes 1 and 2 are in the same cone conformation, but with different side-chains, whereas 3 possesses a different conformation (chair), while bearing the same side-chain as 2. Kinetic and spectral UV-visible analysis revealed that NO+ interacts with resorc[4]arenes 1 and 2 both outside and inside their basket, leading to complexes with two absorption patterns growing at different rates, one featuring high-energy bands (HEB) within the near-UV zone, and the other one low-energy bands (LEB), attributed to charge-transfer interactions, within the visible range...
September 12, 2007: Journal of the American Chemical Society
Dirk Ziebolz, Kristina Helms, Christian Hannig, Thomas Attin
The aim of this study was to investigate the tooth-whitening efficacy and oral side effects of the two tray-based bleaching systems Visalys whitening (VW) and Opalescence PF (OP). A stratified, randomised distribution of the subjects (n = 60) to two treatment groups was performed according to baseline tooth brightness (L* values) as determined by colourimeter and to the criteria smoker/non-smoker. Tooth colour was evaluated by measuring L*a*b* values generated from standardised digital image analysis with Adobe Photoshop of the facial surfaces of the right central maxillary incisor...
September 2007: Clinical Oral Investigations
J Onana, A Ngongang
Hygiene and asepsis of the dental office depend on medical ethics and legal obligation. The survey done with the participation of 33 practitioners over the 42 practicing in Yaounde allows apprehending the reality of the daily hygiene. The ways of cleaning, decontamination, disinfection or of sterilization of the premises, the dental equipment and instruments, hand-washing, disposable materials and the vaccination protection of the practitioners were analyzed. The cleaning of the floor and door mats is daily (100%); disinfection is done daily in 83% of the departments in all of the centers...
March 2002: Odonto-stomatologie Tropicale, Tropical Dental Journal
G Clapeau, B Decroix, R Bakayoko-Ly, B Varenne, D Dosso-Hien, M O Decroix
The International Aid for Ontology (IAO) carried out this survey of hygiene in the dental health services of 5 French-speaking African countries in 1994, in association with the Faculty of Pharmaceutical and Biological Sciences of Paris. This study received support from the World Health Organization (WHO), the French Ministry for Cooperation and the European Community and the Ivory Coast Oral and Dental Hygiene and Health Committee (CIHSBD). Twenty-nine dental services from Benin (3), Burkina Faso (6), Ivory Coast (12), Mali (5), Niger (3) participated in this survey which gives an insight into the daily hygiene routines of these services...
September 1997: Santé: Cahiers D'étude et de Recherches Francophones
F J Whitman, J F Simon
Recent improvements in the in-office techniques for bleaching teeth have reduced chair time, simplified the procedure and reduced the potential for pulpal inflammation and other side effects. Home bleaching has become very popular, but many patients will still prefer the faster, in-office procedure done by their dentist. This comparison of two 35 percent hydrogen peroxide products confirms that these procedures are effective and should be a part of any practice providing esthetic improvements for its patients...
December 1995: Journal of the California Dental Association
E Lynch, A Sheerin, D Y Samarawickrama, M A Atherton, A W Claxson, J Hawkes, P Haycock, D Naughton, K G Seymour, F M Burke
An increased public awareness in dental aesthetics has resulted in the wide availability of techniques of tooth bleaching, both in the dental chair and at home. This article reviews the aetiology of tooth discolouration both at the clinical and the molecular level, together with methods of alleviating such discolouration. Much of the therapeutic and aesthetic actions of commercially-available tooth whiteners, gels, oral rinses and other dentifrices are predominantly dependent on their ability to act as oxidants...
1995: Journal of the Irish Dental Association
F N Hanosh, G S Hanosh
With ever increasing interest in cosmetic enhancement of dentition by dentists and patients alike, this article introduces a new light-activated bleaching system that adds up to total patient satisfaction and reduced chair time. The chairside application of hydrogen peroxide 30% was effective in lightening a moderate case of tetracycline staining. The uniqueness of this system allows the practitioner complete control within an office setting, and it provides the patient with an immediate result. The ease of application and strict supervision of a dentist has allowed this system to satisfy recent watchdogs of the Federal Drug Administration...
May 1992: Journal of Esthetic Dentistry
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