Development of Dentition
Humans have two dentitions in their lifetime, i.e. the primary (deciduous) and secondary (permanent). Each dentition consists of teeth with different shapes, sizes and functions. The classes of teeth developed throughout our life span are:
• Incisiform (incisors) - Incisors are the pair of eight teeth directly situated in the front and center of our mouth, i.e. four in each upper and lower jaw. These single-rooted teeth are extremely important since they all have sharp edges which are used for cutting and biting food into small chewable pieces.
• Caniniform (canines) - On each side of incisors in each jaw, there are four canine teeth in both primary and permanent dentitions. They are located at the 'corners' of the dental
…show more content…
Tooth development occurs within the bone of the developing jaw in bony crypts separate from the oral epithelium. The tooth starts to erupt after the formation of the root begins until it assumes its final position in the mouth with its occlusal surface in the occlusal plane. For teeth to become functional, considerable movement is required to bring them into the occlusal plane. There are three phases of tooth eruption which involves the movement of the teeth namely:
Pre-eruptive tooth movement
This movement is made by the primary and permanent tooth germs within the tissues of the jaw before they begin to erupt. During the early part of tooth formation known as the follicular phase, the follicle enlarges concentrically in every direction. It may slightly move facially within the alveolar bone but with no or minimum eruptive movement. The tooth starts to erupt and the pre-eruptive spurt phase of eruption begins, when crown formation is complete and root formation starts.
Eruptive tooth
In general, root caries have the same etiology as coronal cavities. S. mutans, Lactobacilli, and sometimes, Actinomyces are involved and are found in high numbers in root caries, but there are two main differences between enamel and root surface caries. (Flaitz) These differences cause the lesion on a root surface to be more destructive than that in enamel. First, because the pH at which demineralization will occur is higher for root cementum (approx. pH 6.0) than for enamel (approx. pH 5.0).(Wilkins) Therefore, root cementum has potential for demineralization at an earlier point in time than enamel does. Secondly, once the cementum is demineralized, the dentin contains dentinal tubules which, if present, are potential methods of entry for the pathogenic microbes as mentioned previously, such as S. mutans, Lactobacilli, and sometimes Actinomyces; whereas, enamel consists of tightly-arranged crystal prisms, which have a much lower chance for bacterial entry. The process of caries formation begins with colonization by acid-producing bacteria plaque. In the next step, Gram-positive bacteria invade the dentinal tubules, which leads to the ...
All primates have essentially the same kinds of specialized mammalian teeth adapted to eating a wide variety of foods. Beginning at the front, each quadrant of the mouth has 2 incisors, 1 canine, and varying numbers of premolars and molars. The incisors are used like scissors for nipping off pieces of food. The pointed canines are for piercing and tearing. The premolars and molars, with their cusps, are used to grind and smash food. In platyrrhine species, there are 3 premolars and 2 or 3 molars. This results in a dental formula of 2.1.3.2 or 2.1.3.3. In contrast, all of the catarrhines have 2 premolars and 3 molars, making a dental formula of 2.1.2.3. The chimpanzee shown below is an Old World anthropoid species and, therefore, has a catarrhine dental formula.
Tooth surfaces are referred to by various names in dentistry, including mesial, distal, buccal, and lingual. If you drew a midline t...
Though it is assumed that primitive versions of false teeth have been around since the 700s B.C., the first concrete evidence of false teeth emerges from the 15th century. These were carved of bone or ivory, or they were made from random assortments of teeth that had been dug up from graveyards. However, these had no self-contained method of attachment, but rather were fastened to any remaining teeth by means of metallic or silk thread. This attachment was visible to the observer, resulting in a smile that was not only extremely uncomfortable, but also unattractive. Thus, false teeth were originally intended to serve the sole purpose of aid in eating, not aesthetic purposes.
A bad bite occurs when your teeth are protrusive, crowded, meet in either abnormal way or does not meet or are spaced too far apart. The orthodontists usually guide your teeth into their exact positions with the help of the aligners and the braces. They then stabilize and preserve the results with the help of retainers. Though the main age groups that
... More importantly, properly align teeth enhance the biting, chewing and speaking function of the jaw. The first phase of orthodontic treatment is designed to improve the way the upper and lower jaw fit together by accommodating the permanent teeth. An exact diagnosis is made in order to realign the teeth in the fastest and most effective way.
Dentistry as a profession over the years has evolved rapidly in light of new scientific evidence. Rapidly evolving science and technology have implemented changes within dentistry as evidenced by new standards and guidelines being produced by nationally recognised associations including National Institute for Health and Clinical Excellence (NICE), Faculty of General Dental Practice (FGDP) and Scottish Intercollegiate Guidelines Network (SIGN) in Scotland, in provision of new scientific evidence. The latest standards and guidelines produced, endorse everyday clinical practice through evidence based dentistry (REF). All dental professionals as part of continued professional development are expected to keep to date on relevant guidelines and knowledge related to their practice (REF). This is supported by the General Dental Council who state all clinicians must maintain their professional knowledge and competence throughout their working career (REF).
Everyone has teeth, and society likes them to be as white as possible. But does everyone know the parts of the tooth? The tooth has four parts: dental pulp, dentin, enamel, and cementumcentenum. Dental pulp is the center part of the tooth and is made of tissue and nerves. Dentin is connected to the dental pulp and is the second hardest part of the tooth. Enamel is the hard, outer layer that surrounds the tooth. Enamel cannot be repaired or replaced. One can only prevent its loss, which is why we brush our teeth so often to help eliminate the plaque and acids that certain sodas and other sugary drinks try so hard to remove. Without enamel, teeth would erode within days of their coming in. And last but not least, cementumcentenum. CementumCentenum covers the root of the tooth and it anchors the root to the skin.
Healthcare is a necessity to sustain society. Dentistry is an area of healthcare that I feel extremely passionate about because access to proper dental care is limited, especially in the underserved communities. As an African American, I want to become a dentist and healthcare provider in the hopes of helping patients and adding to the diversification of the field. With a growing minority population in the United States, it has become apparent that there is a shortage of black dentists. This is problematic because underrepresented minorities are in great need of access to culturally connected dentists who understand their clinical needs as much as their lives and their challenges. I believe that when the profession includes a range of ethnicities
Picture yourself with a toothache or someone with poor hygiene and knowing you cannot do anything to change it without a dentist. A dentist is specialized individual that treats the diseases and conditions that affect the oral cavity.
Introduction: In Canada, general dental health is not part Canada’s national system of health insurance (Medicare) (1) except for some dental surgical procedures that are performed at hospitals. Since Oral health does not come under the Health Act about ninety-five percent of the oral health care services are offered on a fee-for-service basis. Oral health care is under provincial or territorial jurisdiction like other health care services and publically financed dental care programs provide the remaining five percent of oral health care services (2). Thus, majority of Canadians receive oral health via privately owned dental clinics. Privately owned dental care gives these services providers control over dental service charges, types of available treatment for the patients and number of follow-up appointment for treatments or routine care. Service users pay for the dental expenses from their own pockets or utilize insurance coverage (1).
It’s an accessory cusp usually located on the lingual surface of permanent or deciduous incisors.
Dentistry is a health science that includes the study and application of measures designed to prevent damage of the oral structures and the use of clinical procedures that that restore the normal masticatory function of teeth and esthetics, correction of speech resulting from loss of natural teeth, satisfaction and comfort of the patient, preservation of alveolar bone and tempromandibular joints. Other goals are to relief pain, treatment of a disease and maintaining the restoration for a long time in the denture without distortion or fracture.
In the past, diseased or damaged teeth could not be salvaged and in most cases, had to be pulled out. However, in the last three decades, endodontic dentistry has evolved to quite an extent and today, professionals trained in this specialty can help save teeth and repair any inherent damage. Common endodontic procedures include root canal therapy, fixing of broken teeth and repairing dental trauma.
Dental hygiene is a dynamic and challenging career that offers team work, personal growth, and extraordinary benefits, and it is the perfect career for me. As a health care professional, the dental hygienist is an important member of the dental team providing patient care. Good qualities for a dental hygienist are compassion and enjoying talking to people which are two qualities that fit my personality. I love the thought of knowing I made a positive impact in a person's health. Becoming a dental hygienist professionally requires you to obtain an associate degree in dental hygiene. They affect the average American by educating them about dental care. A dentist helps people with their dental health, which can greatly impact a person’s day-to-day life.