In orthodontic practice, it is essential to achieve proper adhesion between the bracket and the tooth enamel. The success of the adhesion depends on the tooth surface and its preparation, the design of the bracket base and the cementing material2. The irregularities in the enamel surface caused by dental fluorosis may influence the adhesion of brackets, leading to reports of a decrease in bond strength of brackets on teeth with fluorosis3,4. The reason for this is that fluorosis is associated with hypomineralization of the superficial enamel layer, making it acid resistant, and thus reducing the effectiveness of the acid etching required to achieve adequate adhesion.
Oligodontia (multiple aplasias) is defined as a congenital absence of 6 or more teeth. Oligodontia along with impacted teeth is a rare condition. Oligodontia can occur either as an isolated condition (non-syndromic oligodontia) or it can be associated with cleft lip\palate and other genetic syndromes (syndromic oligodontia). The exact etiology of Oligodontia is unknown; several factors like trauma, radiation, infection, metabolic disorders and idiopathic conditions are the possible etiologic factors. This report describes a case of multiple agenesis of permanent teeth along with impacted teeth.
The incidence of allergies in general is on the increase. An allergic reaction can also occur during any dental and orthodontic treatment. However, the allergic potential of orthodontic appliances is frequently overestimated. Nickel is the most common metal to cause contact dermatitis in orthodontics.
Correct alignment of teeth is a fundamental goal of orthodontic treatment. The accurate assessment of dental crowding and the space required to alleviate it is critical for correct orthodontic diagnosis and treatment planning.
A Comparison of Shear Bond Strength and Debonded Surface Characteristics of Three Orthodontic Bonding Resin Adhesive System- An In-Vitro Study
Bond failure is often attributed to moisture contamination. To overcome this commonly encountered problem, materials have been developed that are hydrophilic and that are believed to offer better bond strength in moisture-contaminated environment.
The delivery of Class-I and Class-II or Class-III force from intermaxillary hooks is very common in orthodontics. There are various ways for the fabrication of intermaxillary hooks. This article highlights the fabrication and clinical use of a rigid intermaxillary hook for the attachment of intra-maxillary and inter-maxillary elastics during space closure and for Class-II and Class-III molar correction.
The accurate assessment of cranio-facial structures forms an important part of orthodontic diagnosis, for which panoramic and cephalometric radiographs are routinely taken at the beginning of the treatment. Cone beam computed tomography (CBCT) technology was developed originally for angiography in 1982, now being applied to maxillofacial imaging.
A Class II malocclusion is the most frequent skeletal problem in orthodontics, as it affects one third of the population. It is identified by having a disharmonious relationship between the maxillary and mandibular bases due to skeletal or dental problems or a combination of both. A mandibular retrusion is its most common characteristic, with 80% of the population displaying this trait.
Precise etching of the enamel surface without over etching or unwanted surface etching is very difficult. To overcome this problem, we have designed a template for etching the enamel surface precisely and only the required area on the enamel surface.