Association of third molar eruption and frictional keratosis - a retrospective study

Objective: The present study aimed to determine if the prevalence of pre-eruptive intracoronal radiolucent defects is higher for young age groups, in which there are more unerupted teeth. Study design: A retrospective study of panoramic and bitewing radiographs was conducted. An inclusion criterion was the presence of un-erupted permanent teeth with a formed and clearly visible crown. Age groups were: young (6–8 years), intermediate (9–12 years) and adults (13–53 years). Significance level was set at p≤0.05. Results: Thirteen (3.9%) pre-eruptive lesions were detected in 335 records. No lesions were found in the young group (7.4%), in the intermediate and adult age groups six and seven lesions were found, respectively. In most cases the pre-eruptive lesion was found in a third molar. Conclusion: The prevalence of pre-eruptive intracoronal lesions was not higher for young age groups. The prevalence of pre-eruptive intra coronal radiolucent lesions is 3.9%, irrespective of age.

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The Frequency of Mandibular Third Molar Impaction in Different Types of Vertical Skeletal Faces

Journal of The Pakistan Dental Association ◽

10.25301/jpda.302.118 ◽

2021 ◽

Vol 30 (02) ◽

pp. 118-123

Author(s):

Sana Viqar ◽

◽

Sadia Rizwan ◽

Syed Shah Faisal ◽

Syed Sheeraz Hussain

Keyword(s):

Third Molar ◽

Third Molars ◽

Skeletal Malocclusion ◽

Mandibular Third Molar ◽

Lateral Cephalograms ◽

Significant Difference ◽

Pre Treatment ◽

Mandibular Third Molars ◽

Facial Types ◽

Third Molar Eruption

OBJECTIVE: To determine the frequency of mandibular third molar impaction in different vertical skeletal facial types. METHODOLOGY: Data was collected using pre-treatment records including orthodontic files, pre-treatment lateral cephalograms and OPGs of 90 orthodontic patients. Patients from both genders were included. The age group of selected patients was 18-30 years. Vertical skeletal malocclusion was measured using facial angle and mandibular plane angle on cephalogram to group the subjects into Mesiofacial, Brachyfacial and Dolichofacial patients. Third molar eruption status was assessed using OPG. RESULTS: Results showed that erupted third molars were mostly found in brachyfacial patients. Among 32 erupted mandibular third molars, 16 belong to brachyfacial, 11 belonged to mesiofacial and 5 belonged to dolichofacial group. Complete impaction of mandibular third molar was most common among dolichofacial patients. Among 29 completely impacted mandibular third molars, 14 belong to dolichofacial, 9 belonged to mesiofacial and 6 belonged to brachyfacial group. No significant difference was found for partially impacted third molars among the three groups of facial types. There was higher prevalence of mandibular third molar impaction in females as compared to males. CONCLUSION: Frequency of third molar impaction was found to be highest in dolichofacial patients and lowest in brachyfacial patients due to forward direction of mandibular growth contributing to greater resorption of the anterior border of ramus and the additional space required for third molar eruption.

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Prevalence of and risk factors for postoperative hemorrhage after lower third molar extraction on warfarin therapy: a multicenter retrospective study in Japan

Odontology ◽

10.1007/s10266-019-00474-y ◽

2019 ◽

Vol 108 (3) ◽

pp. 462-469 ◽

Cited By ~ 2

Author(s):

Shin-ichi Yamada ◽

Takumi Hasegawa ◽

Sakiko Soutome ◽

Hitoshi Yoshimura ◽

Masaaki Miyakoshi ◽

...

Keyword(s):

Risk Factors ◽

Retrospective Study ◽

Warfarin Therapy ◽

Third Molar ◽

Postoperative Hemorrhage ◽

Third Molar Extraction ◽

Molar Extraction

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Prediction of Third Molar Eruption

The Journal of Indian Orthodontic Society ◽

10.1177/0974909820030207 ◽

2003 ◽

Vol 37 (2) ◽

pp. 103-112

Author(s):

Ragini ◽

Navjot Singh ◽

Sandeep Goyal ◽

Prajeesh Padmanabhan ◽

Puneet Munjal

Keyword(s):

Third Molar ◽

Third Molar Eruption

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Adequacy of molar distalization after second and third molar eruption- a case report

International Journal of Dental Research ◽

10.14419/ijdr.v6i2.9676 ◽

2018 ◽

Vol 6 (2) ◽

pp. 50

Author(s):

Sarath Babu Balina ◽

Durga Harsha G V ◽

Padmapriya C V ◽

Varma DPK ◽

Goutham C V

Keyword(s):

Third Molar ◽

Class Ii ◽

Class Ii Malocclusion ◽

Average Growth ◽

Mini Implants ◽

Maxillary Molars ◽

Extraction Therapy ◽

Patient Reported ◽

Maxilla And Mandible ◽

Third Molar Eruption

Adult patients with class II malocclusion can be treated routinely by extraction therapy. In the recent decades there was increasing popularity towards non-extraction treatment. Distalization of maxillary molars is one of the prime treatment modality to correct mild to moderate class II malocclusion cases with esthetically acceptable profile. A 16 years old female patient reported with irregularly placed upper front teeth and was diagnosed as Angle’s Class II malocclusion with orthognathic maxilla and mandible, average growth pattern. Treatment was planned to distalize the entire maxillary arch using mini implants as skeletal anchorage. 4.0 mm of maxillary molars were distalized, class I molar and canine relation were achieved bilaterally within span of 10 months without altering the patient’s existing profile.

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