Studies, Abstracts & User Reports
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Er:YAG laser in the clinical management of severe peri-implantitis: a case report
Badran Z, Bories C, Struillou X, Saffarzadeh A, Verner C, Soueidan A.
Dental Faculty, Nantes, 44042, France
J Oral Implantol. , 16.06.2010
Peri-implantitis is bacterial infections of peri-implant supporting tissues, involving the peri-implant bone. Several treatment protocols have been tested in clinical practice with a variable efficacy. The clinical management of per-implantitis aims for the elimination plaque and calculus, the decontamination of the failing implant surface and the regeneration of the lost bone tissue. Surface decontamination is an important part of all suggested treatments. This could be accomplished by chemical agents (chlorhexidine...), mechanical (ultrasonic...) or photonic (laser) devices. In this report, we present a case of a severe peri-implantitis that was successfully managed by a combination of a non-surgical and a surgical approach. Implant surface debridement/decontamination was obtained using an Er:YAG laser device for the of the implant surface.
© PMID: 20553143 [PubMed - indexed for MEDLINE]
Laserfluoreszenz zur Kariesdiagnostik in einer Kinderzahnarztpraxis
Dr. Sabine Geißler, München
Wissenschaft und Fortbildung BZB Juni 10 3, 01.06.2010
Größere Sicherheit bei der Kariesdiagnostik
Der folgende Beitrag stellt die Laserfluoreszenztechnik
zur Kariesdiagnostik bei Kindern und Jugendlichen vor und zeigt deren Einsatzbereiche aber auch Anwendungsgrenzen auf.
© 2010 teamwork media GmbH
Comparative Investigation with the aid of a Scanning Electron Microscope into Root Canal Instrumentation carried out manually or mechanically
E. Schäfer, K. Zapke
Outpatients Clinic for Tooth Preservation, Münster
The 'cleaning effect' of two mechanically-operated root canal Instrumentation Systems and of three manually-o per ated Instrumentation techniques, äs well äs their shaping characteristics in the course of the Instrumentation carried out were investigated with the aid of a scanning electron microscope. 12 teeth each with either st r a ig ht or curved root canals were instrumented in each case up to ISO - size 40 with manually-operated reaming-motion K-Flexofiles, according to the Step-back Technique also with K-Flexofiles, manually filing with Hedström files, mechanically with the KaVo-Endo-System featuring torque-limited rotation and using K-Flexofiles, äs well äs with the mechanical Profile System using nickel-titanium Instruments.
© 2010 Outpatients Clinic for Tooth Preservation
Noise level measurements of the air noise during drilling and grinding on the fresh isolated temporal bone
Paulsen K, Vietor K
Laryngol Rhinol Otol (Stuttg). , 29.03.2010
Aerial sound measurements with different drilling instruments were performed during dry running and preparations of the bone. Registered were the values of the small drilling instruments Sirona, Dentatus-Air, and Electro-Torque-Ritter. Also tested were the KaVo-Technique-machine, the Hall-machine, the Air-Orbit-turbine, and the Sirona-turbine.
© PMID: 129600 [PubMed - indexed for MEDLINE]
Comparing the reliability of a new fluorescence camera with conventional laser fluorescence devices in detecting caries lesions in occlusal and smooth surfaces of primary teeth
De Benedetto MS, Morais CC, Novaes TF, de Almeida Rodrigues J, Braga MM, Mendes FM
Department of Pediatric Dentistry, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, Brazil
Lasers Med Sci. , 16.02.2010
The aims of this in vitro study were (1) to compare the reliability of a new fluorescence camera (FC; VistaProof) with that of two other laser fluorescence devices (DIAGNOdent and DIAGNOdent pen) in assessing smooth and occlusal caries lesions in primary teeth and (2) to determine the influence of the spacer, the protective cover and air drying on the FC readings. We selected 129 primary molars which were divided into two groups: smooth surfaces (n=68) and occlusal surfaces (n=61).
© PMID: 20157753 [PubMed - as supplied by publisher]
DIAGNOdent measurements of cultures of selected oral bacteria and demineralized enamel
Astvaldsdóttir A, Tranæus S, Karlsson L, Peter Holbrook W
Department of Cariology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
Acta Odontol Scand. , 26.01.2010
Carious tissue fluoresces with a wavelength different from sound tissue when stimulated by light with a wavelength of 655 nm. This difference is thought to have a bacterial origin rather than indicating demineralization. This study aimed to measure fluorescence emitted by normal cultivable caries-associated bacterial flora and typical porphyrin-producing bacteria with DIAGNOdent, and to verify earlier findings that demineralization of the dental hard tissue does not affect DIAGNOdent readings.
© PMID: 20100119 [PubMed - as supplied by publisher]
Effect of sealants on laser fluorescence caries detection in primary teeth
Askaroglou E, Kavvadia K, Lagouvardos P, Papagiannoulis L
Department of Paediatric Dentistry, School of Dental Medicine, University of Athens, Athens, Greece.
Lasers Med Sci., 23.01.2010
The aim of this study was to investigate in vitro the effects of clear or opaque sealants, on the laser fluorescence readings for occlusal caries detection in primary molars. For this reason, 427 occlusal sites in 199 teeth were clinically examined by one dentist, and their laser fluorescence (LF) was measured locally with the DIAGNOdent device, both before and after the teeth had been sealed with Delton Clear LC or Delton Opaque LC.
© PMID: 20099071 [PubMed - as supplied by publisher]
Accuracy of linear measurements from cone-beam computed tomography-derived surface models of different voxel sizes
Damstra J, Fourie Z, Huddleston Slater JJ, Ren Y
Department of Orthodontics, University Medical Center Groningen, University of Groningen, PO Box 30.001, Groningen, 9700 RB, The Netherlands
Am J Orthod Dentofacial Orthop. 2010 Jan;137(1):16.e1-6; discussion 16-7, 01.01.2010
The aims of this study were to determine the linear accuracy of 3-dimensional surface models derived from a commercially available cone-beam computed tomography (CBCT) dental imaging system and volumetric rendering software and to investigate the influence of voxel resolution on the linear accuracy of CBCT surface models.
© PMID: 20122425 [PubMed]
Comparison of five cone beam computed tomography systems for the detection of vertical root fractures
Hassan B, Metska ME, Ozok AR, van der Stelt P, Wesselink PR
Department of Oral and Maxillofacial Radiology, Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
J Endod. 2010 Jan;36(1):126-9, 01.01.2010
This study compared the accuracy of cone beam computed tomography (CBCT) scans made by five different systems in detecting vertical root fractures (VRFs). It also assessed the influence of the presence of root canal filling (RCF), CBCT slice orientation selection, and the type of tooth (premolar/molar) on detection accuracy.
© PMID: 20003950 [PubMed - indexed for MEDLINE]
Basic study of the use of laser on detection of vertical root fracture
Kimura Y, Tanabe M, Amano Y, Kinoshita J, Yamada Y, Masuda Y
Division of Endodontics, Department of Conservative Dentistry, Ohu University School of Dentistry, 31-1 Misumido, Tomita-machi, Koriyama-city, Fukushima, Japan
J Dent. , 01.12.2009
Many methods are used to detect vertical root fractures, but most are not adequate for identification of incomplete fractures or cracks. The purpose of this study was to evaluate the effects of three detergents on detection of vertical root fractures by DIAGNOdent with methylene blue (MB) solution.
© PMID: 19665275 [PubMed - indexed for MEDLINE]