Peg shaped teeth are those with a cone-shaped morphology. It is a dental disorder called microdontia; a condition in which one or more teeth seem smaller than average. The upper lateral incisors and, in certain cases, third molars are the most affected teeth. Peg laterals, on the other hand, usually occur on both sides and have shorter roots than normal teeth.
Several medical diseases could cause peg-shaped teeth, including:
• Hypo-melanosis: where teeth will be smaller than usual and more widely spaced.
• Cleidocranial dysostosis: is a hereditary disorder that affects the development of the collar and skull bones.
• Ectodermal Dysplasia: hereditary conditions for the abnormal development of teeth.
• In addition, the most common causes of peg laterals are genetics and developmental peculiarity.
Whatever causes peg-shaped teeth, the best treatment options would be the teeth reshaping with:
1. Indirect Veneers
2. Direct composite additive approach: which is considered the most conservative approach since it require no teeth preparation and can provide excellent aesthetic results.
3. Crowns: considered to be the least conservative approach.
For all the mentioned treatment options, it’s necessary for the reshaping to be in harmony with the adjacent teeth regarding the color, shape proportions (length/width ratio), incisal effects, and texture.
The (Golden Proportion) of dentistry is a mathematical analysis tool for assessing the widths and the dominance of the maxillary anterior teeth. It is designed on a frontal photographic view of the patient.
Golden proportion was also the inspiration for Leonardo DaVinci’s “The Vitruvian Man”, as seen in the face of the Mona Lisa. It has evolved into a valuable tool in dentistry, not only for evaluating but also for designing smiles that mimic the beauty, harmony, and symmetry seen in nature.
The simplest description of the golden proportion is that if we take the lateral incisor as a factor of 1, then the central incisor would be 1.6 (i.e., ≈ 60 % larger or we can say that the lateral is ≈ 40% smaller than central). The visible part of that canine, usually the mesial part of the canine in that front photographic view, would be 0.6. This is evaluated bilaterally so that we can sure that there’s symmetry from the right to left side, as well as a pleasing proportion.
Thus, the case I’m sharing here was referred to me by my friend “the talented orthodontist” Dr. Karrar Alseedi for aesthetic reshaping of the lateral incisors after diastema closure by orthodontics. The case was completed in 1 session of 2.5 hours working time.
So, I will leave you with the images for the case with a simple description below each image.
My best wishes
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