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Successful treatment using endosseous dental implants is dependent on the formation and maintenance of secure implant-to host bone fixation. This criterion for success has been recognized since the late 1970s as a result of early reports by Branemark and co-workers on successful use of threaded, screw-shaped cpTi implants placed using a careful two-stage surgical procedure.1 … Read more
The SLSA program is based on current, referenced literature and consists of 40 questions, answers, rationales and references. Dentists who complete the 15 question quiz in the November, 2000 issue of Oral Health may be eligible to receive continuing education points. The names and license numbers of all who complete the quiz will be forwarded … Read more
Show us where YOU read Oral Health. Send your photos to: Oral Health, 1450 Don Mills Rd., Don Mills, ON M3B 2X7 Please note: PHOTOS WILL NOT BE RETURNED. Due to space and quality requirements, we are unable to print every photo we receive.
Table I: Patients (n = 131) Age/Years Female Male 17-78 84 47 Table II: Prosthetics (n = 131) Single Tooth FPD < 4 FPD > 4 O.D. 30 20 43 38 Table III: Implants (n = 456) No. Type Success Loss 15 D2 15 0 110 D3 109 1 304 D4 302 2 27 C-h … Read more
ABSTRACT: The maxillary posterior region of the mouth sustains greater bite forces compared to the anterior, yet often present the poorest bone density. A biomechanical approach, often presented to decrease risk factors in regions of high stress or poor bone density, is to increase implant surface area. Most manufacturers provide implants in variable lengths. Sinus … Read more
Modern implantology represents a continuum of developments spanning more than a century. Most early implant restorations were relatively short-lived, due to a lack of fully biocompatible materials.1 Increased predictability was finally achieved with Strock’s2 introduction of cobalt-chromium implants in 1939. The following year, Bothe et al.3 made the startling observation that living bone forms a … Read more
Table 1: Summary of Bone-Implant Interface Strength Determinations Surface Design Shear Strength Tensile Strength N/mm2 N/mm2 Machined 1-3 <1 Grit-blasted 4-6 <1 Acid-etched 1-3 <1 Plasma-sprayed >10 2-5 Sinter Porous-sfe’d >10 -10
I was dismayed, recently, to hear that a female patient of mine had been on a holiday south with her friends, and had the opportunity to be introduced to an Orthodontist – a friend of one of her friends who happened to be along on the same trip. My patient was discussing the orthodontic treatment … Read more
Today’s “Universal Precautions” require the sterilization of handpieccs after each patient use. Current handpieces and high-tech air turbines offer durability, built-in light sources, good spray patterns and overall excellent performance. High performance demands not only excellent components but also careful, consistent maintenance in order to protect the original investment and to obtain trouble-free operation for … Read more
Pulpal and periradicular pathology develop when the dental pulp and periradicular tissues become exposed to microorganisms. In experimental germ free conditions pulpal and periradicular tissues fail to show the development of pathosis and associated lesions when exposed to bacteria.1,2 The conclusion: microorganisms are the main irritants of the dental pulp and periodontium, and sealing the … Read more
The ability to improve the appearance of one’s smile by nightguard vital bleaching (or at-home bleaching) has been accepted in North America since 1989.1 With a greater degree of research being carried out and the results favorable when the technique is adhered to, tooth whitening has become one of the most conservative forms of aesthetic … Read more
Chronic diffuse sclerosing osteomyelitis of the jaws is believed to be an inflammatory response to microorganisms of low virulence. Although carious, non-vital teeth have been implicated in the etiology and progression of this disease, chronic periodontal disease appears to provide a more common portal of entry for bacteria. Clinical Features Although this condition may affect … Read more
There are many Implant dentists who believe that any given case might be ‘over treated,’ while the next case is considered ‘under-treated.’ The number of implants used in each individual case can vary with: a) What does the patient wants or what can they afford? b) What the dentist is trying to accomplish? c) How … Read more
The use of dental implants has increased dramatically over the last decade and is becoming the preferred choice of replacing missing teeth over conventional fixed and removable prosthesis. There are many factors that play a role in the success of implant dentistry. One key factor is pre-surgical assessment of the alveolar ridge as a potential … Read more
As the name implies, peroxide prophy paste is a prophy paste which contains hydrogen peroxide for the purpose of lightening teeth. It is manufactured by Challenge Products Incorporated (800-322-9800) and distributed by a number of companies. It is an alkaline (pH 11), hydrophilic, viscous paste that is presently available in a 3.5% hydrogen peroxide concentration. … Read more
A tooth is transposed if it improperly occupies the position of another tooth in the dental arch. The most commonly transposed tooth is the permanent canine.1 In the maxilla, where transposition is more often encountered, the canine is most frequently transposed with the first premolar (Figure 1) followed by the lateral incisor.2 Interestingly, in the … Read more
www.noah.cuny.edu/ dental/dentistry.html ‘Ask Noah’ is sponsored by the New York Hospital and Cornell Medical Centre. It provides a fact sheet about oral hygiene. www.aerie.com/nohicweb This is the homepage of The National Oral Health Information Clearinghouse. www.nih.gov/nia/ health/pubpub/teeth.htm An aging population can find information specific to its needs at the National Institute on Aging’s ‘Age Page’: … Read more
