scholarly journals A Radiograhic Study of the Third Molar Inclusion

2019 ◽  
Vol 25 (2) ◽  
pp. 74-77
Author(s):  
Nagy-Bota Monica Cristina ◽  
Păcurar Mariana ◽  
Hălmaciu Ioana ◽  
Suciu Bogdan-Andrei ◽  
Brînzaniuc Klara
Keyword(s):  
Pathological Condition ◽  
Third Molar ◽  
Third Molars ◽  
Impacted Teeth ◽  
Female Patients ◽  
Wisdom Teeth ◽  
Male Patients ◽  
The Right ◽  
Upper Third ◽  
Lower Arch

Abstract Objective: The aim of this study is to determine the incidence of inclusion of lower and upper third molar in the population of Mures county. Materials and Methods: For this study, we examined the orthopantomograms (OPGs) of 243 patients (including 138 women and 105 men, aged 19-57 years old) who had impacted third molars and who presented to three Orthodontic Clinics in Tîrgu Mureș between 2015-2017. All impacted third molars were taken into consideration but which at the same time presented fully developed roots. We excluded from the study patients with pathological condition or craniofacial syndromes such as cleidocranial dysostosis and Down syndrome. Results: In both women and men, the most common cases were of one impacted molar (61,72%), then two (27,16%) and three (11,12%) impacted molars. Based on the evaluation of all radiographs, 363 impacted teeth were observed, with a higher proportion in women (54,27%) compared to men (45,73%). With regard to the location of the impacted teeth in the mandible or the maxilla, in both female and male patients, the incidence of mandibular impactions was higher (62,25%) than in the maxilla (37,75%). Regarding the link between the position on the arch (right and left side) and the localization of the impacted teeth, in female patients we can assert that while the mandible had the largest number of impacted teeth on the right side (69,35%), the impacted teeth in the maxilla were more numerous on the left side (60,27%) (p=0,00004). In male patients, regardless of whether the impactions were in the mandible or in the maxilla, they were more frequent on the right side (70,58% in mandible and 76,56% in maxilla) than on the left one. Conclusions 1. The incidence of impacted wisdom teeth is higher in females compared to males. 2. Impacted wisdom teeth are more common on lower arch than on upper arch. 3. In female patients, the prevalence of impaction is higher on the right side in the mandible and on the left side in the maxilla 4. In male patients, the prevalence of impaction on the right side is higher in both mandible and maxilla

scholarly journals Coronectomy of the wisdom teeth: the dental extraction alternative

2021 ◽  
Vol 3 (59) ◽  
pp. 12-17
Author(s):  
Sergiu Beliniuc ◽  
◽  
Gabriela Motelica ◽  
Keyword(s):  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Mandibular Canal ◽  
Surgical Removal ◽  
Third Molars ◽  
Close Proximity ◽  
Wisdom Teeth ◽  
Low Incidence ◽  
Upper Third ◽  
Surgical Separation

Background. Coronectomy of the wisdom teeth is an alternative surgical procedure to tooth extraction, which aims to preserve the roots of the wisdom teeth in the dental socket after surgical separation of the crown, in order to avoid the injury of the inferior alveolar vascular-nervous bundle. Purpose. Minimizing the damage to the inferior alveolar nerve when extracting lower third molars caused by the intimate relationship between the nerve and the roots of the teeth, by using the technique of coronectomy, or intentional root retention. Material and Methods. Patients who reported to University Dental clinic during the period 2020–2021 for surgical removal of impacted L3M were screened for nerve–root relationship with OPG or CBCT. 15 patients underwent coronectomy as a procedure to remove the crown and upper third of the roots of a lower third molar to reduce the risk of damage to the inferior alveolar nerve. Results. 15 patients were enrolled in this study, with a total of 17 lower third molars. Sixteen sites healed primarily, but in 1 case the sockets on both sides opened and failed to close secondarily. In this case, the root fragments were later removed and found to be mobile. Conclusion. Coronectomies are safer to perform than complete extractions in situations in which the third molar is in close proximity to the mandibular canal. The technique appears to be associated with a low incidence of complications and the removal of remaining roots is required in around 6-7% of cases due to the mesial migration of the fragment and not any symptoms or reinfection.

scholarly journals Morphology Analysis of Human Fourth Molars Using Computed Microtomography - Pilot Study

2020 ◽  
Vol 9 (4) ◽  
pp. 570-581
Author(s):  
Ana Clélia Roussenq Baracho ◽  
Eun Sol Cho ◽  
Nayara Ramos de Almeida Torres ◽  
Thiago Gomes da Silva ◽  
Antonio Adilson Soares de Lima
Keyword(s):  
Root Canal ◽  
Third Molar ◽  
Morphological Characteristics ◽  
Control Group ◽  
Case Group ◽  
Third Molars ◽  
Computed Microtomography ◽  
Molar Teeth ◽  
The Right ◽  
Lower Arch

Analyze the morphological characteristics of fourth molars from non-syndromic patients using computed microtomography (microCT). Five human fourth molars (case group) and other three third molars (control group) were obtain from Biobank of UFPR Dentistry School. The teeth were submitted to macroscopic and microCT analysis. Sample characteristics: 60% of the teeth from the lower arch, mainly from the right lower arch (40%). The results showed that eighty percent of the teeth were impacted and all of them presented normal morphology. The microCT revealed that one of the fourth molars had hypercementosis. Concerning the root canal anatomy, all of the fourth molars studied had just one principal root canal. Four teeth had one collateral canal that ended at the lateral face of the root. The volume average of root canal, dentine and enamel were respectively 9.27 mm3, 122.64 mm3 and 74.71 mm3. The averages between these variables in third molars were 46.98 mm3, 473.25 mm3 and 198.34 mm3, respectively. Proportionally, the volume of the fourth molars was five times less than the third molars, but the dentine and enamel volume were, respectively, 3.8 and 2.7 times less than third molars. The fourth molar teeth usually showed only one principal root canal and it can be associated with other alterations, such as hypercementosis. Although the fourth molars were smaller, the proportion of enamel volume is bigger than third molar in comparison.

scholarly journals Presentation of an iatrogenically displaced third molar into the maxillary sinus in a 14-year-old patient successfully removed with an endoscopic approach: a case report and a review of the literature

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
David Z Allen ◽  
Rishabh Sethia ◽  
Erin Hamersley ◽  
Charles A Elmaraghy
Keyword(s):  
Maxillary Sinus ◽  
Third Molar ◽  
Sinus Surgery ◽  
Third Molars ◽  
Third Molar Extraction ◽  
Wisdom Teeth ◽  
Mucoperiosteal Flap ◽  
Anatomical Relationship ◽  
Nasal Trauma ◽  
The Right

Abstract Oral surgeons remove third molars (wisdom teeth) to prevent impaction. Given the close anatomical relationship to the maxillary sinus, perforation and displacement of third molars into the maxillary sinus is a well-known phenomenon that is typically removed with a buccal mucoperiosteal flap or through a Caldwell–Luc approach. However, a less invasive route of endoscopic removal has been utilized to success in one report. A literature review shows few reports of displaced molars into the maxillary sinus and no reported patient below the age of 18. A 14-year-old patient presented with a displaced third molar into her maxillary sinus following third molar extraction with her oral surgeon. The tooth was removed successfully, utilizing endoscopic sinus surgery (ESS) with a transition to transoral retrieval to prevent nasal trauma. This is the first reported case of displaced third molar into the right maxillary sinus in a pediatric patient that was removed via ESS.

scholarly journals Clinical assessment of impacted lower third molars at Ekpan, Delta State in Nigeria

2020 ◽  
Vol 3 (2) ◽  
pp. 352-355
Author(s):  
Mabel Okiemute Etetafia ◽  
Ese Anibor ◽  
Martins Obaroefe
Keyword(s):  
Third Molar ◽  
Third Molars ◽  
Impacted Tooth ◽  
Female Ratio ◽  
Impacted Teeth ◽  
Pull Out ◽  
Carious Lesions ◽  
Surgical Extraction ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars

Introduction: Diagnosis and management of impacted mandibular third molars call for a cogent appraisal and treatment choice both for the sick person and the dental practitioner. This academic work scrutinized the pattern as well as treatment of impacted mandibular third molars at the Teem Clinic and Dental Centre, Ekpan, Delta State, in Nigeria.Materials and Methods: This cross-sectional survey involved 131 cases who reported impacted mandibular third molars. The age, gender, impacted tooth, type of impaction, pathological conditions, and treatment proffered were recorded.Results: The male to female ratio was 0.8:1, with an age range of 10 to 40 years. Of the lower third molar impactions 58 (42.0%) were mesioangular, 5 (3.6%) horizontal, 18 (13.0%) vertical and 57 (41.3%) were distoangular. A total of 47 (34.1%) quested for dental attention following varying degrees of pain induced by pericoronitis. Teeth removal was accomplished for 76 (55.0%) owing to carious lesions on the impacted teeth, proximate tooth, or both. Surgical extraction was the option taken in 69 (50.0 %) with caries on the impacted teeth while 3 (2.2%) had to pull out of their teeth done owing to carious lesions on the bordering second molars. In 3 (2.2%) both the impacted third molar and the proximate second molar were decayed. Conclusions: The prevailing indication for pulling out impacted mandibular third molars was acute pericoronitis. Mesioangular sort of impaction was most recurrent and ought to be considered for theplausibility of frequentness of complications.

scholarly journals The Retromolar Space and Wisdom Teeth in Humans: Reasons for Surgical Tooth Extraction

2020 ◽  
Author(s):  
Abed El Kaseh ◽  
Maher Al Shayeb ◽  
Syed Kuduruthullah ◽  
Nadeem Gulrez
Keyword(s):  
Homo Sapiens ◽  
Third Molar ◽  
Structural Features ◽  
Morphometric Study ◽  
Third Molars ◽  
Facial Skeleton ◽  
Lower Jaw ◽  
Wisdom Teeth ◽  
Retromolar Region

Abstract Objective This article explores the problem of developing pathologies in the retromolar region. Findings can serve a framework for disease prevention and for the improvement of the quality of life of patients. The present study aims to justify the possibility of utilizing morphometric methods to foresee problems in the eruption of third molars. Materials and Methods A comprehensive morphometric study of the lower jaw and facial skeleton involves 100 skulls of Homo sapiens to identify the anatomical causes of problems with wisdom teeth eruption. All said skulls are divided in two groups: I: skulls with intact dentition; II: skulls with impacted third molars. Results This work allows detecting abnormalities in the eruption of the third molar with high probability of success. The abnormalities in point are considered not only those associated with the generally accepted parameters but also those that occur in the leptoprosopic face cases. Conclusions Face type and the structural features of the facial skeleton play a significant role in the abnormal eruption of the lower third molar.

scholarly journals Comparison of Buccal Infiltration of 4% Articaine With 1 : 100,000 and 1 : 200,000 Epinephrine for Extraction of Maxillary Third Molars With Pericoronitis: A Pilot Study

2013 ◽  
Vol 60 (2) ◽  
pp. 42-45 ◽  
Author(s):  
José Lacet Lima ◽  
Eduardo Dias-Ribeiro ◽  
Julierme Ferreira-Rocha ◽  
Ramon Soares ◽  
Fábio Wildson Gurgel Costa ◽  
...  
Keyword(s):  
Third Molar ◽  
Controlled Clinical Trial ◽  
Third Molars ◽  
Double Blind ◽  
Experienced Pain ◽  
Group 2 ◽  
Upper Third ◽  
Buccal Infiltration ◽  
Palatal Mucosa ◽  
Group 1

Abstract We compared the buccal infiltration of 4% articaine with 1 : 100,000 or 1 : 200,000 epinephrine without a palatal injection for the extraction of impacted maxillary third molars with chronic pericoronitis. This prospective, double-blind, controlled clinical trial involved 30 patients between the ages of 15 and 46 years who desired extraction of a partially impacted upper third molar with pericoronitis. Group 1 (15 patients) received 4% articaine with 1 : 100,000 epinephrine and group 2 (15 patients) received 4% articaine with 1 : 200,000 epinephrine by buccal infiltration. None of the patients in group 1 reported pain, but 3 patients in group 2 reported pain, which indicated a need for a supplementary palatal injection. The palatal injections were all successful in eliminating the pain. Two additional patients in group 2 experienced pain when the suture needle penetrated their palatal mucosa. Based on these results, 4% articaine with 1 : 100,000 epinephrine was found to be more effective for the removal of upper third molars in the presence of pericoronitis than 4% articaine hydrochloride with 1 : 200,000 epinephrine when only a buccal infiltration was used.

scholarly journals A Case of Surgical Extraction of the Lower Third Molars in a Cranial Series from the Pucará de Tilcara Fortress (Jujuy Province, Argentina)

2020 ◽  
Vol 48 (2) ◽  
pp. 149-156
Author(s):  
A. V. Zubova ◽  
O. L. Pikhur ◽  
A. V. Obodovskiy ◽  
A. A. Malyutina ◽  
L. M. Dmitrenko ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Third Molar ◽  
Pathological Process ◽  
Stone Tool ◽  
Third Molars ◽  
Dental Surgery ◽  
X Ray ◽  
Surgical Extraction ◽  
Ct Analysis ◽  
The Right

This study analyzes the earliest known case of surgical extraction of the lower third molars, observed in a cranial series from Pucará de Tilcara fortress (15th–16th centuries AD), northwestern Argentina, excavated in 1908–1910. Crania were transported to the Kunstkamera in 1910 under an exchange project. Traces of dental surgery were registered in the mandible of a male aged ~40. Both third molars had been extracted after the removal of soft tissues and parts of the alveoli. Teeth were extracted by scraping alveolar walls with semicircular movements. The results of scanning electron microscopy, X-ray fluorescence, and X-ray microanalysis suggest that a stone tool was used. The results of macroscopic and CT analysis suggest that the surgery was motivated by the exacerbation of chronic periodontal disease and probably by caries. The left third molar was extracted without complications 2–3 months before the individual’s death. On the right side, the pathological process continued, culminating in osteomyelitis and its complications. The surgeon’s skill notwithstanding, the extraction of the right third molar did not cure the patient, who died, apparently following the destructive stage of acute osteomyelitis complicated by orofacial phlegmon. Our findings suggest that the level of dental surgery practiced in the Inca Empire was ahead of the diagnostic expertise.

scholarly journals Is prophylactic extraction of mandibular third molar indicated? A retrospective study.

2020 ◽  
Author(s):  
Zhouxi Ye ◽  
Wenhao Qian ◽  
Yubo Wu ◽  
Bing Sun ◽  
Zhiyao Li ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Older Patients ◽  
Third Molar ◽  
P Value ◽  
Third Molars ◽  
Impacted Teeth ◽  
Second Molar ◽  
Mandibular Third Molar ◽  
Mandibular Second Molar ◽  
Mandibular Third Molars

Abstract Background To evaluate the associations of impaction patterns of mandibular third molars (M3Ms) with pathologies caused by them. Methods In this study, 262 patients with 432 impacted M3Ms were included. The pathologies include pericoronitis, mandibular second molar (M2M) caries, and M2M distal periodontal pathology. The impaction patterns of M3Ms and the pathologies were examined, and the M2Ms outcomes after the surgeries were evaluated. χ2 test was used to analyze the data and a P value of <0.05 was considered statistically significant. Results Pericoronitis was the major symptom in all patients, whereas the propensities of M2M distal caries and periodontal pathologies increased in older patients. Soft tissue impacted and vertically angulated teeth were more associated with the pericoronitis (p <0.05); Mesio-angular impacted teeth in less deep positions had greater risks of M2Ms distal caries (p <0.05); Mesio-angular and horizontal impacted teeth in relative deep positions were more likely to cause M2Ms distal periodontal pathologies (p <0.05). Conclusions Extractions of soft tissue impacted teeth in vertical angulations should be considered. While removals of mesially and horizontally angulated or bony impacted teeth could be delayed.

Preoperative imaging assessment for third molars

2015 ◽  
Vol 61 (1) ◽  
pp. 77-83
Author(s):  
Florian-C. Dogioiu ◽  
◽  
Rodica Luca ◽  
Marinela Tonea ◽  
Consuela E. Ghiuţă ◽  
...  
Keyword(s):  
Postoperative Complications ◽  
Panoramic Radiography ◽  
Third Molar ◽  
Preoperative Imaging ◽  
Third Molars ◽  
X Ray ◽  
Dental Practitioners ◽  
Digital Panoramic Radiography ◽  
Upper Third ◽  
Clinical Cases

Objectives. The comparative evaluation of the role and information contribution brought by panoramic radiography (X-ray) and CT to the preoperative assessment of third molars, found in different stages of eruption. This assessment is useful both for certifying the diagnosis and for establishing the proper surgical strategy adapted to specific clinical cases, in order to avoid undesirable surgical incidents and postoperative complications. Patients and method. This is a retrospective study in which 23 patients were enrolled, on whom 79 third molars were identified. All these molars had, for various (historical and clinical) reasons, removal indications. Sex distribution of the patients was: 6 (26%) men and 17 (74%) women. After a detailed clinical examination, a digital panoramic radiography was performed on all patients, which provided additional useful information. This imaging investigation allowed a sorting out of the cases in which an additional preoperative imaging investigation, such as CT, was required. CT information was compared with that obtained from panoramic radiography (X-ray) and surgery intervention data. Results. In this study imaging investigation was performed on 79 third molars: 41 (51.9%) on upper third molars and 38 (48.1%) on lower molars. As concerning the stage of impaction, 22 (27.84%) were impacted and the same percent was found for those partially impacted. In 22.5 (28.48%) cases root dilacerations were identified. Special attention has been granted to the anatomical relationship of third molar roots with nearby structures: maxillary sinuses and the mandibular canal. So, from the upper third molars, 13 (31.7%) were in the sinus and so were those which were in close relationship with the sinus. Conclusion. Panoramic radiography (X-ray) provides orientative and often insufficient information about root morphology and anatomical relationships of third molars. In the clinical cases which required a comprehensive imaging assessment, CT data were crucial for adapting surgical procedures to specific clinical situations, minimizing surgical incidents and postoperative complications. Discerning recourse to 3D imaging ensures net benefits for patients as well as for dental practitioners.

NICE and the third molar debate

2013 ◽  
Vol 4 (4) ◽  
pp. 166-171 ◽  
Author(s):  
Louis McArdle
Keyword(s):  
Third Molar ◽  
Clinical Indication ◽  
Third Molars ◽  
Clinical Guidance ◽  
The Third ◽  
Nice Guidance ◽  
Wisdom Teeth ◽  
The Uk ◽  
Disease Free

In 2000 the National Institute for Health and Care Excellence (NICE) published clinical guidance that advised against the removal of disease-free wisdom teeth (prophylactic removal).1 This was mainly driven by the perception in the UK that up to 44% of all removed third molars were disease free and consequently had no clinical indication for removal.1,2 But does the NICE guidance, which has become akin to scripture on this issue, have everything right?.

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