NEET MDS Lessons
Pedodontics
Erythroblastosis fetalis
Blue-green colour of primary teeth only. It is due to excessive haemolysis of
RBC. The Staining occurs due to diffusion of bilirubin and biliverdin into the
dentin
Porphyria
Purplish brown pigmentation. to light and blisters on The other features hands
and face e Hypersensitivity are are red red coloured urine, urine,
Cystic fibrosis
(Yellowish gray to dark brown. It is due to tetracycline, which is the drug of
choice in this disease
Tetracycline
Yellow or yellow-brown pigmentation in dentin and to a lesser extent in enamel
that are calcifying during the time the drug is administered. The teeth
fluoresce yellow under UV light
Stages of Freud's Model
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Oral Stage (1-2 years):
- Focus: The mouth is the primary source of interaction and pleasure. Infants derive satisfaction from oral activities such as sucking, biting, and chewing.
- Developmental Task: The primary task during this stage is to develop trust and comfort through oral stimulation. Successful experiences lead to a sense of security.
- Example: Sucking on a pacifier or breastfeeding helps infants develop trust in their caregivers.
- Potential Outcomes: Fixation at this stage can lead to issues with dependency or aggression in adulthood. Individuals may develop oral-related habits, such as smoking or overeating.
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Anal Stage (2-3 years):
- Focus: The anal zone becomes the primary source of pleasure. Children derive gratification from controlling bowel movements.
- Developmental Task: Toilet training is a significant aspect of this stage. The way parents handle toilet training can influence personality development.
- Outcomes:
- Overemphasis on Toilet Training: If parents are too strict or demanding, the child may develop an anal-retentive personality, characterized by compulsiveness, orderliness, and stubbornness.
- Lax Toilet Training: If parents are too lenient, the child may develop an anal-expulsive personality, leading to impulsiveness and a lack of organization.
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Phallic Stage (3-5 years):
- Focus: The child becomes aware of their own genitals and develops sexual feelings. This stage is marked by the Oedipus complex in boys and the Electra complex in girls.
- Oedipus Complex: Boys develop an attraction to their mother and view their father as a rival for her affection. This leads to feelings of jealousy and fear of punishment (castration anxiety).
- Electra Complex: Girls experience a similar attraction to their father and may feel competition with their mother, leading to "penis envy."
- Developmental Task: Resolution of these complexes is crucial for developing a mature sexual identity and healthy relationships.
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Latency Stage (6 years to puberty):
- Focus: Sexual feelings are repressed, and children focus on developing skills, friendships, and social interactions. This stage corresponds with the development of mixed dentition (the transition from primary to permanent teeth).
- Developmental Task: The maturation of the ego occurs, and children develop their character and social skills. They engage in activities that foster learning and peer relationships.
- Potential Outcomes: Successful navigation of this stage leads to the development of self-confidence and competence in social settings.
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Genital Stage (puberty onward):
- Focus: The individual develops a mature sexual identity and seeks to establish meaningful relationships. The focus is on the genitals and the ability to engage in sexual activity.
- Developmental Task: The individual learns to balance the needs of the self with the needs of others, leading to the ability to form healthy, intimate relationships.
- Potential Outcomes: Successful resolution of earlier stages leads to a well-adjusted adult who can satisfy their sexual and emotional needs while also pursuing goals related to reproduction and personal identity.
Oedipus Complex: Young boys have a natural tendency to be attached to
the mother and they consider their father as their enemy.
Distraction Techniques in Pediatric Dentistry
Distraction is a valuable technique used in pediatric dentistry to help manage children's anxiety and discomfort during dental procedures. By diverting the child's attention away from the procedure, dental professionals can create a more positive experience and reduce the perception of pain or discomfort.
Purpose of Distraction
- Divert Attention: The primary goal of distraction is to shift the child's focus away from the dental procedure, which may be perceived as unpleasant or frightening.
- Reduce Anxiety: Distraction can help alleviate anxiety and fear associated with dental visits, making it easier for children to cooperate during treatment.
- Enhance Comfort: Providing a break or a moment of distraction during stressful procedures can enhance the overall comfort of the child.
Techniques for Distraction
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Storytelling:
- Engaging the child in a story can capture their attention and transport them mentally away from the dental environment.
- Stories can be tailored to the child's interests, making them more effective.
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Counting Teeth:
- Counting the number of teeth loudly can serve as a fun and interactive way to keep the child engaged.
- This technique can also help familiarize the child with the dental procedure.
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Repetitive Statements of Encouragement:
- Providing continuous verbal encouragement can help reassure the child and keep them focused on positive outcomes.
- Phrases like "You're doing great!" or "Just a little longer!" can be effective.
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Favorite Jokes or Movies:
- Asking the child to recall a favorite joke or movie can create a light-hearted atmosphere and distract them from the procedure.
- This technique can also foster a sense of connection between the dentist and the child.
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Audio-Visual Aids:
- Utilizing videos, cartoons, or music can provide a visual and auditory distraction that captures the child's attention.
- Headphones with calming music or engaging videos can be particularly effective during procedures like local anesthetic administration.
Application in Dental Procedures
- Local Anesthetic Administration: Distraction techniques can be especially useful during the administration of local anesthetics, which may cause discomfort. Engaging the child in conversation or using visual aids can help minimize their focus on the injection.
Esthetic Preformed Crowns in Pediatric Dentistry
Esthetic preformed crowns are an important option in pediatric dentistry, providing a functional and aesthetic solution for restoring primary teeth. Here’s a detailed overview of various types of esthetic crowns used in children:
i) Polycarbonate Crowns
- Advantages:
- Save time during the procedure.
- Easy to trim and adjust with pliers.
- Usage: Often used for anterior teeth due to their aesthetic appearance.
ii) Strip Crowns
- Description: These are crown forms that are filled with composite material and bonded to the tooth. After polymerization, the crown form is removed.
- Advantages:
- Most commonly used crowns in pediatric dental practice.
- Easy to repair if damaged.
- Usage: Ideal for anterior teeth restoration.
iii) Pedo Jacket Crowns
- Material: Made of tooth-colored copolyester material filled with resin.
- Characteristics:
- Left on the tooth after polymerization instead of being removed.
- Available in only one shade.
- Cannot be trimmed easily.
- Usage: Suitable for anterior teeth where aesthetics are a priority.
iv) Fuks Crowns
- Description: These crowns consist of a stainless steel shell sized to cover a portion of the tooth, with a polymeric coating made from a polyester/epoxy hybrid composition.
- Advantages: Provide a durable and aesthetic option for restoration.
v) New Millennium Crowns
- Material: Made from laboratory-enhanced composite resin material.
- Characteristics:
- Bonded to the tooth and can be trimmed easily.
- Very brittle and more expensive compared to other options.
- Usage: Suitable for anterior teeth requiring esthetic restoration.
vi) Nusmile Crowns
- Indication: Indicated when full coverage restoration is needed.
- Characteristics: Provide a durable and aesthetic solution for primary teeth.
vii) Cheng Crowns
- Description: Crowns with a pure resin facing that makes them stain-resistant.
- Advantages:
- Less time-consuming and typically requires a single patient visit.
- Usage: Suitable for anterior teeth restoration.
viii) Dura Crowns
- Description: Pre-veneered crowns that can be placed even with poor moisture or hemorrhage control.
- Challenges: Not easy to fit and require a longer learning curve for proper placement.
ix) Pedo Pearls
- Material: Aluminum crown forms coated with a tooth-colored epoxy paint.
- Characteristics:
- Relatively soft, which may affect long-term durability.
- Usage: Used for primary teeth restoration where aesthetics are important.
Physical Restraints in Pediatric Dentistry
Physical restraints are sometimes necessary in pediatric dentistry to ensure the safety of the patient and the dental team, especially when dealing with uncooperative or handicapped patients. However, the use of physical restraints should always be considered a last resort after other behavioral management techniques have been exhausted.
Types of Physical Restraints
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Active Restraints
- Description: These involve the direct involvement of the dentist, parents, or staff to hold or support the patient during a procedure. Active restraints require the physical presence and engagement of an adult to ensure the child remains safe and secure.
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Passive Restraints
- Description: These involve the use of devices or equipment to restrict movement without direct physical involvement from the dentist or staff. Passive restraints can help keep the patient in a safe position during treatment.
Restraints Performed by Dentist, Parents, or Staff
- Description: This category includes any physical support or holding done by the dental team or accompanying adults to help manage the patient’s behavior during treatment.
Restraining Devices
Various devices can be used to provide physical restraint, categorized based on the area of the body they are designed to support or restrict:
-
For the Body
- Papoose Board: A device that wraps around the child’s body to restrict movement while allowing access to the mouth for dental procedures.
- Pedi Wrap: Similar to the papoose board, this device secures the child’s body and limbs, providing stability during treatment.
- Bean Bag: A flexible, supportive device that can help position the child comfortably while limiting movement.
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For Extremities
- Towels and Tapes: Used to secure the arms and legs to prevent sudden movements during procedures.
- Posey Straps: Adjustable straps that can be used to secure the child’s arms or legs to the dental chair.
- Velcro Straps: These can be used to gently secure the child’s limbs, providing a safe way to limit movement without causing distress.
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For the Mouth
- Mouth Blocks: Devices that hold the mouth open, allowing the dentist to work without the child closing their mouth unexpectedly.
- Mouth Props: Similar to mouth blocks, these props help maintain an open mouth during procedures, facilitating access to the teeth and gums.
Three Sub-Stages of Adolescence
Adolescence is a critical developmental period characterized by significant physical, emotional, and social changes. It is typically divided into three sub-stages: early adolescence, middle adolescence, and late adolescence. Each sub-stage has distinct characteristics that influence the development of identity, social relationships, and behavior.
Sub-Stages of Adolescence
1. Early Adolescence (Approximately Ages 10-13)
- Characteristics:
- Casting Off of Childhood Role: This stage marks the transition from childhood to adolescence. Children begin to distance themselves from their childhood roles and start to explore their emerging identities.
- Physical Changes: Early physical development occurs, including the onset of puberty, which brings about changes in body shape, size, and secondary sexual characteristics.
- Cognitive Development: Adolescents begin to think more abstractly and critically, moving beyond concrete operational thinking.
- Emotional Changes: Increased mood swings and emotional volatility are common as adolescents navigate their new feelings and experiences.
- Social Changes: There is a growing interest in peer relationships, and friendships may begin to take on greater importance - Exploration of Interests: Early adolescents often start to explore new interests and hobbies, which can lead to the formation of new social groups.
2. Middle Adolescence (Approximately Ages 14-17)
- Characteristics:
- Participation in Teenage Subculture: This stage is characterized by a deeper involvement in peer groups and the teenage subculture, where social acceptance and belonging become paramount.
- Identity Formation: Adolescents actively explore different aspects of their identity, including personal values, beliefs, and future aspirations.
- Increased Independence: There is a push for greater autonomy from parents, leading to more decision-making and responsibility.
- Romantic Relationships: The exploration of romantic relationships becomes more prominent, influencing social dynamics and emotional experiences.
- Risk-Taking Behavior: Middle adolescents may engage in risk-taking behaviors as they seek to assert their independence and test boundaries.
3. Late Adolescence (Approximately Ages 18-21)
- Characteristics:
- Emergence of Adult Behavior: Late adolescence is marked by the transition into adulthood, where individuals begin to take on adult roles and responsibilities.
- Refinement of Identity: Adolescents solidify their sense of self, integrating their experiences and values into a coherent identity.
- Future Planning: There is a focus on future goals, including education, career choices, and long-term relationships.
- Social Relationships: Relationships may become more mature and stable, with a shift from peer-focused interactions to deeper connections with family and romantic partners.
- Cognitive Maturity: Cognitive abilities continue to develop, leading to improved problem-solving skills and critical thinking.
Hypophosphatasia in Children
Hypophosphatasia is a rare genetic disorder characterized by defective mineralization of bones and teeth due to a deficiency in alkaline phosphatase, an enzyme crucial for bone mineralization. This condition can lead to various dental and skeletal abnormalities, particularly in children.
Clinical Findings
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Premature Exfoliation of Primary Teeth:
- One of the hallmark clinical findings in children with hypophosphatasia is the premature loss of anterior primary teeth.
- This loss is associated with deficient cementum, which is the tissue that helps anchor teeth to the alveolar bone.
- Teeth may be lost spontaneously or as a result of minor trauma, highlighting the fragility of the dental structures in affected children.
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Absence of Severe Gingival Inflammation:
- Unlike other dental conditions that may cause tooth mobility or loss, severe gingival inflammation is typically absent in hypophosphatasia.
- This absence can help differentiate hypophosphatasia from other periodontal diseases that may present with similar symptoms.
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Limited Alveolar Bone Loss:
- The loss of alveolar bone associated with hypophosphatasia may be localized, often limited to the anterior region where the primary teeth are affected.
Pathophysiology
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Deficient Alkaline Phosphatase Activity:
- The disease is characterized by improper mineralization of bone and teeth due to deficient alkaline phosphatase activity in various tissues, including serum, liver, bone, and kidney (tissue nonspecific).
- This deficiency leads to inadequate mineralization, resulting in the clinical manifestations observed in affected individuals.
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Increased Urinary Phosphoethanolamine:
- Patients with hypophosphatasia often exhibit elevated levels of urinary phosphoethanolamine, which can serve as a biochemical marker for the condition.