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Normal Dental Development and Oral Pathology Rebecca L. Slayton, DDS, PhD Department of Pediatric Dentistry Amanda Keerbs, MD Department of Family Medicine.

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Presentation on theme: "Normal Dental Development and Oral Pathology Rebecca L. Slayton, DDS, PhD Department of Pediatric Dentistry Amanda Keerbs, MD Department of Family Medicine."— Presentation transcript:

1 Normal Dental Development and Oral Pathology Rebecca L. Slayton, DDS, PhD Department of Pediatric Dentistry Amanda Keerbs, MD Department of Family Medicine

2 PRIMARY DENTITION

3 Eruption Schedule

4

5

6 Mesial surface – towards the front of the mouth Distal surface – towards the back of the mouth Midline

7 Upper (Maxillary) Arch Labial/Buccal Surface Palatal Surface Occlusal Surface Incisal Surface

8 Lower (Mandibular) Arch Labial/Buccal Surface Lingual Surface Occlusal Surface Incisal Surface

9 Ectopic Eruption Abnormal pattern of tooth eruption Abnormal pattern of tooth eruption Teeth are delayed in eruption or erupt in the wrong location Teeth are delayed in eruption or erupt in the wrong location Most common for permanent lower incisors, permanent upper canines and permanent first molars Most common for permanent lower incisors, permanent upper canines and permanent first molars

10 Syndromes with Dental Manifestations Dentinogenesis Imperfecta Dentinogenesis Imperfecta Amelogenesis Imperfecta Amelogenesis Imperfecta Cleidocranial Dysostosis Cleidocranial Dysostosis Ectodermal Dysplasia Ectodermal Dysplasia

11 Common Causes of Malocclusion Non-nutritive sucking behaviors Non-nutritive sucking behaviors –May cause anterior open bites or crossbites in children who use pacifiers and digits –Most children will stop oral behaviors by age 2. For older children, consider using rewards, gloves, replacement items Caries or trauma with premature loss of teeth and loss of space Caries or trauma with premature loss of teeth and loss of space

12 Common Oral Lesions in the Primary Care Office Lip lesions Lip lesions –Angioedema –Herpes Labialis –Mucocele –Angular cheilitis Lingual Lesions Lingual Lesions –Hairy Tongue –Geographic Tongue

13 Common Oral Lesions in the Primary Care Office Oral conditions of infants and children Oral conditions of infants and children –Natal teeth –Epsteins pearls –Eruption cysts –Thrush Tooth Conditions Tooth Conditions –Tooth Staining –Erosions

14 Common Oral Lesions in the Primary Care Office White lesions White lesions –Candida –Oral Leukoplakia –Morsicatio Buccarum Vesiculobullous Lesions Vesiculobullous Lesions –Primary herpes gingivostomatitis –Recurrent herpes –Herpangina –Hand-foot-and-Mouth Disease

15 Common Oral Lesions in the Primary Care Office Ulcers Ulcers –Aphthous Ulcers –Behcets Syndrome

16 Caries Caries are an infectious, communicable disease resulting in the destruction of tooth structure by the acid produced by the metabolism of sugar by bacteria found in dental plaque Plaque is a dense bacterial aggregate containing about 10% bacteria per milligram that accumulates on tooth surfaces. Caries

17 DENTAL CARIES Host Bacteria Substrate TEETH MUTAN STREPTOCOCCI LACTOBACILLI FRUCTOSE SUCROSE Dental Caries Process

18 The acid created by the caries bacterias metabolism of sugar leads to demineralization. Demineralization is the loss of calcium, phosphate and carbonate from the enamel Dental Caries Stages

19 If demineralization is allowed to continue, the tooth will eventually be eroded enough for a cavity to form. Incipient Lesion (caries not more than halfway into enamel) Lesion has reached the dentinoenamel junction (DEJ) Lesion is progressing laterally and towards the pulp Lesion extended into the pulp

20 Oral Screening Examination Tips from a practicing clinician Tips from a practicing clinician –Get in the habit of performing a brief oral examination in all patients presenting to your office for general wellness exams and use that time to discuss with patients their dental habits and risk factors for oral disease –Perform more detailed evaluations in patients when indicated by history any review of systems –In kids always lift the lip

21 Important Landmarks of the Oral Cavity Lips Lips Labial and Buccal Mucosa Labial and Buccal Mucosa Floor of mouth Floor of mouth Hard and soft palate Hard and soft palate Parotid papilla Parotid papilla Oropharynx and tonsilar pillars Oropharynx and tonsilar pillars


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