Related Experiment Video
Updated: Jun 16, 2026

07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Root hypoplasia: an unusual sequela to primary tooth trauma
Nitesh Tewari1, Ramesh Kumar Pandey
1Department of Pedodontics with Preventive Dentistry, Faculty of Dental Sciences, C.S.M. Medical University, Uttar Pradesh, India. dr.nitesht@gmail.com
Summary
Primary tooth trauma can cause rare permanent tooth root abnormalities. This case highlights complex developmental issues like hypoplasia and duplication following early childhood dental injuries.
Area of Science:
- Pediatric Dentistry
- Dental Traumatology
- Developmental Biology
Background:
- Traumatic dental injuries to primary teeth are common in children.
- These injuries can lead to various sequelae in the developing permanent dentition.
- Root abnormalities in permanent teeth following primary trauma are considered rare.
Observation:
- A case report detailing the sequelae of traumatic injury to primary teeth in a child aged 4 years and 8 months.
- The injury involved significant impact leading to complex dental anomalies.
- Specific observations included developmental disturbances in permanent incisors and canines.
Findings:
- The traumatic event resulted in root hypoplasia affecting permanent teeth 11 and 21.
- Root duplication was observed in the permanent tooth 12.
- Avulsion of the permanent tooth bud 22 was another significant finding.
Implications:
- This case underscores the potential for severe and diverse developmental disturbances in permanent teeth following primary tooth trauma.
- Highlights the importance of careful monitoring of permanent teeth following any primary dental injury.
- Contributes to the understanding of rare dental anomalies and their etiology in pediatric patients.
More Related Videos
Related Concept Videos
Tooth Anatomy
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Spinal Cord Injury ll: Pathophysiology
Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Secondary Spinal Cord Injury llI: Pathophysiology
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Primary and Secondary Growth in Roots and Shoots
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
Teeth
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
