Anatomy and Embryology of the Mouth and Dentition
John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford in Head & Neck Surgery Plastic Surgery, 2018
The sensory nerves to the palate are derived from the greater and lesser palatine and nasopalatine branches of the maxillary nerve (Figure 41.10) These nerves pass through the pterygopalatine ganglion. The greater palatine nerve descends through the greater palatine canal, entering the hard palate at the greater palatine foramen. It then passes forwards on the bony palate towards the canine tooth, supplying the gums and the mucosa and glands of the hard palate (excluding the anterior teeth). As it leaves the greater palatine canal, palatine branches are also distributed to the soft palate. The smaller lesser palatine nerves descend through the greater palatine canal to emerge through the inconspicuous lesser palatine foramina and give branches to the uvula, tonsil and soft palate. Fibres conveying taste impulses from the palate probably pass via the palatine nerves to the pterygopalatine ganglion (see Figure 41.10) and through it to the nerve of the pterygoid canal and then the greater petrosal nerve to reach the facial ganglion, where their somata are situated. Parasympathetic postganglionic secretomotor fibres run in the facial nerve through its greater petrosal nerve to reach the pterygopalatine ganglion to be distributed in the palatine nerves, thereby reaching palatine mucous glands.
The gastrointestinal tract
Simon R. Knowles, Laurie Keefer, Antonina A. Mikocka-Walus in Psychogastroenterology for Adults, 2019
Digestion starts in the mouth (Figure 1.3). There, teeth break down large pieces of ingested food into smaller pieces. Various types of teeth are adapted to various functions. Incisors, located at the front of the mouth, with their sharp fine surface, are designed to cut food, while the pointy canine teeth are designed for tearing food. Molars and pre-molars are large teeth situated at the back of the mouth. By the action of chewing, the top and bottom molars and pre-molars rub their surfaces together, grinding the food into smaller particles.
Mandibular fractures
John Dudley Langdon, Mohan Francis Patel, Robert Andrew Ord, Peter Brennan in Operative Oral and Maxillofacial Surgery, 2017
The canine teeth have long roots and the mandibular third molar teeth are often partially erupted. Together with the mental foramen, these factors can weaken bone locally and account for the frequency of fractures in these regions. In young patients, the periosteum may resist fracture displacement at the time of impact and in minimally displaced fractures may facilitate non-operative management. However, once it is torn (by injury or surgical exposure), fracture displacement can more readily occur.
Dog bite injuries of the eye and ocular adnexa
Published in Orbit, 2019
Benjamin P. Erickson, Paula W. Feng, Sophie D. Liao, Yasha S. Modi, Audrey C. Ko, Wendy W. Lee
Though rare, medial degloving injuries may also result from dog bites.54 Symptoms of medial degloving injuries classically include telecanthus, epiphora, and ptosis.54,55 Causes of injury characteristically involve shearing or avulsion of the medial canthus, often due to a vertical incision from the eyebrow or forehead to the lower eyelid or cheek, causing medial canthal injury.54,55 Management consists of computed tomography to exclude fractures or retained foreign bodies.54,56 Ptosis, if present, may resolve spontaneously and can be managed with observation for 3–6 months. When necessary, ptosis repair should occur sooner in children, who are at risk of developing amblyopia due to ptosis.57,58 Reconstruction preferably occurs in a staged approach, with telecanthus and lacrimal reconstruction occurring first, followed by ptosis repair.54,55,59–62 Canine tooth syndrome
Experiences and perceptions of infant dental enucleation among Somali immigrants in Sweden: a phenomenographic study
Published in Acta Odontologica Scandinavica, 2019
Jir Barzangi, Kristina Arnrup, Lennart Unell, Kirsti Skovdahl
This category was founded on perceptions of explanations and reasons preceding the practice as a method of treatment for a sick child. The main reason for treating a child with IDE was diarrhoea, especially if it was persistent or recurrent. Other specified reasons were headache, fever and vomiting. Some informants described how the area of the canine tooth bud became infected with bacteria or larvae, which caused symptoms in children. Other informants were unsure of why the areas became sick. Several informants described the illness as showing itself by whitening and swelling of the area around the tooth buds. This was referred to as a condition known to them as ilkow or ilko dowo’o. Some informants were unsure whether ilkow/ilko dowo’o was a real condition, or they perceived that other reasons explained the symptoms, such as generally poor hygiene or unsanitary food and water:
Allergy to acrylate in composite in an orthodontic patient: a case report
Published in Journal of Orthodontics, 2018
Sophy K. Barber, Harmeet K. Dhaliwal
The Dental Panoramic Tomograph (DPT) revealed the presence of the full adult dentition including third molars. No pathology was noted. The maxillary right primary canine tooth showed significant resorption and the maxillary right permanent canine (UR3) was close to eruption. The maxillary left permanent canine (UL3) was palatally ectopic, angled at 45° to the midline with the incisal tip positioned close to the maxillary midline at the height of the mid-point of the central incisor root.
Related Knowledge Centers
- Incisor
- Mandibular Canine
- Maxilla
- Maxillary Canine
- Mouth
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