Related Experiment Video
Updated: May 27, 2026
04:19
The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
Published on: January 13, 2023
Spontaneous eruption of impacted second molars
Giampietro Farronato1, Lucia Giannini, Guido Galbiati
1Department of Orthodontics, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy. giampietro.farronato@unimi.it
Progress in Orthodontics
|November 15, 2011
Summary
Surgically removing the covering mucosa significantly increased the eruption of impacted second molars compared to observation. This conservative approach offers a viable treatment option for impacted teeth.
Area of Science:
- Dentistry
- Oral Surgery
Background:
- Impacted second molars present a common clinical challenge.
- Limited conservative treatment options exist for promoting eruption.
Purpose of the Study:
- To evaluate the efficacy of surgical removal of the overlying mucosa in facilitating the eruption of impacted mandibular second molars.
- To propose a treatment protocol for managing impacted second molars.
Main Methods:
- A randomized controlled trial was conducted with 40 patients (66 impacted teeth).
- Group 1: Surgical removal of the mucosa covering the impacted teeth (n=34).
- Group 2: Control group with observation only (n=32).
- Statistical analysis included Chi-squared test and risk ratio calculation.
Main Results:
- Eruption occurred in 32 teeth (94.1%) after mucosal removal, versus only 3 teeth (9.4%) in the control group.
- The difference in eruption rates between the groups was statistically significant (p<0.001).
- Among unerupted teeth, 20 had mesial inclination and 12 were vertical.
Conclusions:
- Surgical removal of the covering mucosa is an effective conservative treatment for promoting the eruption of impacted second molars.
- This minimally invasive procedure can be considered a primary treatment option, without precluding future therapies.
- The findings support the integration of this technique into treatment planning for impacted molars.
Related Concept Videos
01:15Teeth
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...
01:21Tooth 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.
01:28Development of the Oral Microbiota
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
01:11Oral Cavity
The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...