Category: Pedodontics

ERUPTION SEQUENCE OF PERMANENT AND DECIDUOUS DENTITION

Dr.MehnazLeave a comment

The term eruption is used to denote the tooth’s emergence through the gingiva but the occlusal definition is equal movement of tooth from the dental bud to occlusal contact.

▪️Eruption sequence in Primary teeth:

Upper

  • Central Incisor: 10 months (8-12 months)
  • Lateral Incisor: 11 months (9-13 months)
  • Canine: 19 months (16-22 months)
  • 1st Molar: 16 months (13-19 months)
  • 2nd Molar: 29 months (25-33 months)

Lower

  • Central Incisor: 8 months (6-10 months)
  • Lateral Incisor: 13 months (10-16 months)
  • Canine: 20 months (17-23 months)
  • 1st Molar: 16 months (14-18 months)
  • 2nd Molar: 27 months (23-30 months)

▪️Eruption sequence of Permanent teeth:

Maxillary Teeth

  • Central Incisor: 7-8 yrs
  • Lateral Incisor: 8-9 yrs
  • Canine: 11-12 yrs
  • 1st Premolar: 10-11 yrs
  • 2nd Premolar: 10-12 yrs
  • 1st Molar: 6-7 yrs
  • 2nd Molar: 12-13 yrs
  • 3rd Molar: 17-21 yrs

Mandibular Teeth

  • Central Incisor: 6-7 yrs
  • Lateral Incisor: 7-8 yrs
  • Canine: 9-10 yrs
  • 1st Premolar: 10-12 yrs
  • 2nd Premolar: 11-12 yrs
  • 1st Molar: 6-7 yrs
  • 2nd Molar: 11-13 yrs
  • 3rd Molar: 17-21 yrs

Dentowesome 2020 @dr.mehnaz

References: Textbook-Pediatric-Dentistry-Nikhil-Marwah

SILVER DIAMINE FLOURIDE

ashtinder02243 Comments

Silver diammine fluoride, (SDF) is a topical medicament used to treat and prevent dental caries  and relieve dentinal hypersensitivity. It is a colorless or blue-tinted, odourless liquid composed of silver, ammonium and fluoride ions at a pH of 10.4 . Ammonia compounds reduce the oxidative potential of SDF, increase its stability and helps to maintain a constant concentration over a period of time, rendering it safe for use in the mouth.Silver  and Flouride ions possess antimicrobial properties and are used in the remineralization of enamel  and dentin on teeth for preventing and arresting dental caries.

BRANDS AVAILABLE IN INDIA:

38% SDF solution, e-SDF , 5 ml Bottle, Kids-e-dental Llp,

INDICATIONS:

  • Carious  deciduous teeth showing radiographic evidence of being close to exfoliation;
  • Non-restorable asymptomatic teeth where extracttion is contra-indicated.
  • With symptomatic hypersentivity  to ease dentin hypersensitivity and slow down disease progress.
  • With active root surface carious lesions.
  • No symptoms of an irreversible inflammation of the dental pulp .

CONTRAINDICATIONS:

  • patients with an allergy to silver or compounds containing silver.
  • patients with  stomatitis
  • patients who are unable to tolerate treatment.
  • teeth with irreversible pulpitis or direct pulp exposure.
  • Where it is not possible to achieve adequate isolation of tooth and oral tissues.

POSTER PRESENTATION ON SDF

PALATAL AND ALVEOLAR CYSTS OF NEWBORN

Dr.MehnazLeave a comment
  • Dental lamina cyst of Newborn
  • Gingival cyst of Newborn
  • Epstein’s pearls, Bohn’s nodules
Dental Lamina Cyst of Newborn👇🏻

Dental lamina cyst of newborn are multiple, occasionally solitary, superficial raised nodules on edentulous alveolar ridges of infants that resolve without treatment; derived from rests of dental lamina & consisting of keratin producing epithelial lining.

Epstein’s pearls👇🏻

Cystic keratin filled nodules; derived from epithelial remnants entrapped along line of fusion, usually seen at midpalatine raphe.

Bohn’s nodules👇🏻

Keratin filled cysts scattered over the palate at the junction of hard and soft palate; derived from palatal salivary gland structures.

🔹Introduction:

  • A special form of odontogenic cyst – 80% of the infants.
  • Gingival cyst is M/E similar to epidermoid cyst.
  • It develops after 4 week in utero.
  • Palatal Cyst arises from epithelial remnants in stroma after fusion of palatal processes usually at posterior midline of hard palate.

🔹Clinical Features:

➡️ Gingival Cyst:

  1. They are multiple, superficial raised nodules on edentulous alveolar ridge of infants that resolve without treatment.
  2. They are localized in corium below the surface epithelium.
  3. Those found in anterior portion of jaw are displaced lingually & in posterior portion are found occlusal to crown of molars.
  4. They are asymptomatic and do not produce any discomfort to the infant.
  5. These are small discrete, white swellings, blanched from internal pressure.

➡️ Palatal Cyst:

  1. They are Multiple (<6), 1-4mm in size & yellow-white in color. Sessile mucosal papules of posterior hard palate.
  2. They are larger & less numerous than gingival cyst. Both are so superficial that several may be ruptured at the time of examination.

🔹 Histopathological Features:

  • Thin, stratified squamous epithelium – produce keratin.
  • Fibrovascular connective tissue stroma without inflammatory infilterate.
  • Cystic lumen filled with degenerated keratin, formed into concentric layers/onion rings.
  • Epithelium lacks Rete processes.
  • Dystrophic calcification & Hyaline bodies seen.

🔹Treatment:

Generally self limiting, (within 3 months) no treatment is required in most of the cases. If baby is having feeding difficulties, complete excision of the cyst can be done.

References: Shafer’s Textbook of Oral Pathology 7th Edition

Dr. Mehnaz Memon🖊