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BMC Oral Health Dec 2022The indication for removal of asymptomatic fully impacted third molars is still controversial. In this study, radiological and histological investigation of the dental...
OBJECTIVES
The indication for removal of asymptomatic fully impacted third molars is still controversial. In this study, radiological and histological investigation of the dental follicle of asymptomatic impacted mandibular third molars was performed, aiming to provide a reference for clinical prophylactic extraction of these teeth.
METHODS
Patients with impacted mandibular third molars were included and the maximum width of the dental follicle around the crown was measured in horizontal, sagittal and coronal sections by cone beam computed tomography. The dental follicles were stained with haematoxylin-eosin, analysed by a pathologist and classified as normal, inflammatory or cystic. A Chi-squared test was used to analyse the association of the incidence of inflammation and cysts with the clinical variables of the impacted mandibular third molars.
RESULTS
Thirty-seven samples were normal dental follicles; 52 samples showed inflammatory infiltration with an incidence of 57.14%; 2 samples with a maximum dental follicle width of 2-3 mm were diagnosed as odontogenic cysts, and the incidence was 2.20%. There was no significant difference in the incidence of inflammatory and cystic dental follicles between males and females, or between different age groups (P > 0.05). With an increase of the maximum width of the dental follicle, there was a rise in the incidence and degree of infiltration of chronic nonspecific inflammation.
CONCLUSION
Asymptomatic impacted mandibular third molars tend to be extracted, especially for teeth with a 2-3 mm maximum width of the dental follicle on radiological examination.
Topics: Male; Female; Humans; Molar, Third; Dental Sac; Molar; Mandible; Tooth, Impacted; Inflammation
PubMed: 36567318
DOI: 10.1186/s12903-022-02681-6 -
Genes Apr 2021It is known that genetic factors determine odontogenesis; furthermore, studies have revealed that various genes in humans can regulate the development of different types...
It is known that genetic factors determine odontogenesis; furthermore, studies have revealed that various genes in humans can regulate the development of different types and generations of teeth. In this study it has been assumed that tooth impaction-at least to some extent-also depends on the presence of specific genetic markers, especially allelic variants of the gene. The primary objective of the study was to evaluate the suitability of selected molecular markers located within the gene for the determination of the risk of tooth impaction in particular patients. The study participants were divided into two groups: (1) the study group-at least one secondary tooth was impacted in the jaws; (2) the control group-no impacted tooth in the jaws. Real-Time PCR and TaqMan probes were used to detect selected polymorphisms in the analyzed genes. Two single nucleotide polymorphisms of were analyzed. After the two subgroups of patients were distinguished in the study group based on the number of impacted teeth, statistically significant differences in the frequency of genotypes described for in the gene were found.
Topics: Case-Control Studies; Early Diagnosis; Female; Genetic Association Studies; Genetic Markers; Genetic Predisposition to Disease; Haplotypes; Humans; MSX1 Transcription Factor; Male; Polymorphism, Single Nucleotide; Radiography, Panoramic; Tooth, Impacted
PubMed: 33923458
DOI: 10.3390/genes12040577 -
Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi... Apr 2018Teeth impaction is a common developmental malformation in oral diseases. Impacted teeth are usually the canines, third molar, central incisors, premolars, and second... (Review)
Review
Teeth impaction is a common developmental malformation in oral diseases. Impacted teeth are usually the canines, third molar, central incisors, premolars, and second molars. The prevalence of impaction of maxillary canines and mandibular wisdom teeth is higher than that of other teeth. Most recent studies have focused on the canines and third molars, but research on impacted premolars is limited. In clinical practice, the majority of orthodontic patients require premolar extraction. Thus, impacted premolars play important roles in orthodontic design and prognosis. This article provides an overview of recent research on impacted premolars and summarizes epidemiological features, localizations, and treatments, with the aim of guiding practitioners on orthodontic design and therapy.
Topics: Bicuspid; Cuspid; Humans; Molar, Third; Prevalence; Tooth, Impacted
PubMed: 29779287
DOI: 10.7518/hxkq.2018.02.019 -
Journal of Medicine and Life 2020Our aim was to evaluate the location of impacted canines and their proximity to the lateral and central incisor to assess the prognosis of the impacted canine and...
Our aim was to evaluate the location of impacted canines and their proximity to the lateral and central incisor to assess the prognosis of the impacted canine and compare the reliability of 2D versus 3D imaging solutions. We carried a prospective study on 17 subjects with impacted maxillary canines. Later, the patients underwent radiologic examination, i.e., sectional computed tomography and orthopantomography. The obtained records were compared regarding the location of the impacted maxillary canine, the proximity and resorption of the impacted canine to the lateral and central incisors, the prognosis of the impacted canine, and the linear distance of the canine from the vertical and horizontal reference lines drawn. Eleven males (45.8%) and 13 females (54.1%), 11 (45.8%) impacted canines on the right side, and 13 (54.1%) on the left side, as well as 2 (8.3%) transpositions, were noted. Buccally impacted teeth caused less resorption of the adjacent teeth. Among the 24 teeth examined using orthopantomography with the sector method, 3 (12.5%) teeth were found in sector 1. There were 8 (33.33%) teeth in sector 2, and 11 (45.8%) of the impacted canines were in sector 3. In localizing impacted maxillary canines, computed tomography revealed an increased accuracy of 31% compared to orthopantomography. Even though both computed tomography and orthopantomography revealed similar records, computed tomography showed more accuracy, also having an added advantage of its 3D viewing capabilities in precise localization of the impacted maxillary canine.
Topics: Cuspid; Female; Humans; Imaging, Three-Dimensional; Incisor; Male; Prospective Studies; Radiography, Panoramic; Reproducibility of Results; Tomography, X-Ray Computed; Tooth, Impacted
PubMed: 32341702
DOI: 10.25122/jml-2020-0001 -
European Review For Medical and... Nov 2019Report Authors' clinical case series on impacted maxillary incisors treatment with laser technology. (Review)
Review
OBJECTIVE
Report Authors' clinical case series on impacted maxillary incisors treatment with laser technology.
PATIENTS AND METHODS
Studied population was composed by 6 male and 12 female undergoing orthodontic treatments for lack of eruption of 28 upper incisors; eight impacted teeth (4 patients) spontaneously erupted after orthodontic creation of the correct eruptive space. Twenty maxillary incisors were surgically exposed; in 5 patients seven un-erupted incisors were exposed through an apically positioned flap technique; in two patients a guided closed eruption technique was performed on a central and two lateral maxillary incisors; in seven patients laser exposure technique was applied on ten incisors. All impacted teeth resulted correctly aligned at the end of therapy.
RESULTS
Impaction of incisors is not a frequent event in dental practice. The positioning of the incisors was obtained by creating the eruptive space and aligning the un-erupted teeth with orthodontic treatment or after removing any obstacle or after their exposure with different surgical methods. In all patients the treatment allowed the restoration of both the aesthetic and function aspect of the stomatognathic apparatus.
CONCLUSIONS
In this case load, patients undergoing exposure of the dental crown using diode laser showed the best postoperative course.
Topics: Adolescent; Child; Female; Humans; Laser Therapy; Male; Maxillary Diseases; Retrospective Studies; Tooth Eruption; Tooth, Impacted
PubMed: 31799634
DOI: 10.26355/eurrev_201911_19530 -
Scientific Reports Nov 2022This cross-sectional study aimed to classify the radiographical characteristics of impacted maxillary canines that were surgically exposed following orthodontic traction...
This cross-sectional study aimed to classify the radiographical characteristics of impacted maxillary canines that were surgically exposed following orthodontic traction and to find out which factor is most closely related to traction duration. This study enrolled 74 patients with 87 maxillary canines. Cone-beam computed tomography images, panoramic radiographs, and medical records were analyzed. Cystic-appearing lesion and resorption of adjacent roots were observed in 26.4% and 23.0% of cases, respectively. Impacted maxillary canines were mostly distributed in the lateral incisor area. The mean (± standard deviation) traction duration for the 47 teeth that met the study criteria was 13.9 (± 8.9) months. Impacted maxillary canines treated with surgical exposure and orthodontic traction showed increasing possibilities of palatal impaction and resorption of the adjacent root as they were located mesially (p < 0.05). The distance from the occlusal plane to the impacted maxillary canine showed the strongest positive correlation with traction duration (r = 0.519, p < 0.01). When establishing treatment plans for patients with impacted maxillary canines, distance from the occlusal plane to the impacted canines, rather than the angle, should be considered in predicting the duration of treatment.
Topics: Humans; Cross-Sectional Studies; Traction; Maxilla; Cuspid; Tooth, Impacted; Cone-Beam Computed Tomography
PubMed: 36357464
DOI: 10.1038/s41598-022-23232-7 -
Journal of Stomatology, Oral and... Apr 2023In clinical practice, it is risky to extract bone-impacted teeth and they're prone to a variety of complications, such as pathological fracture, adjacent tooth fracture,...
BACKGROUND
In clinical practice, it is risky to extract bone-impacted teeth and they're prone to a variety of complications, such as pathological fracture, adjacent tooth fracture, maxillary sinus perforation, and so on, making it difficult for clinicians to decide whether to extract them.
PURPOSE
In order to illustrate our opinions on the possibility of extracting full third molars (M3), 360 examples of complete third molars were analyzed in this study.
MATERIALS AND METHOD
We investigated 2189 patients, and 261 of them provided CBCT images of 360 teeth. assessing the degree of second molar(M2) root absorption in connection to age, impacted relationship, contact part, calculating the odds ratio (OR) and 95% confidence interval using the Logistic regression analysis equation.
RESULT
Bone-impacted M3 occurred in 11.92% (261/2189) of patients with "impacted teeth" diagnoses. There was a significant difference between the occurrence of M2ERR and the contact parts (P value<0.001), and only the type of vertical impaction differed significantly from Level 3 (P < 0.05).
CONCLUSIONS
1) M3 should be removed if root resorption has not occurred in M2. 2) Root resorption is more likely to occur when M3 crown and M2 apical contact. 3) Enough experience, precise preoperative assessment can reduce the dangers to a minimum.
Topics: Humans; Retrospective Studies; Root Resorption; Cone-Beam Computed Tomography; Molar; Molar, Third; Tooth, Impacted
PubMed: 36208836
DOI: 10.1016/j.jormas.2022.10.003 -
The design and clinical application of a new appliance to treat impacted maxillary central incisors.The Journal of Clinical Pediatric... Mar 2023Maxillary central incisor impaction is one of the most common types of dental anomalies in children. Treatment of impacted central incisors is complicated and...
Maxillary central incisor impaction is one of the most common types of dental anomalies in children. Treatment of impacted central incisors is complicated and challenging given the position of the impacted central incisors, root development, and the complexity of the crown eruption direction. This study aimed to describe the use of a new multifunctional appliance for the treatment of impacted maxillary central incisors. This article reports the use of a novel appliance for the treatment of impacted maxillary central incisors. We describe the cases of two young patients with labial horizontally impacted maxillary central incisors. Both patients were treated using this novel appliance. Therapeutic effects were evaluated by comparing the pretreatment results, posttreatment cone-beam computed tomography images, and posttreatment clinical examination results. At the end of the treatment period using the novel appliance, the impacted central incisors had successfully been properly aligned in the dental arch, and the tooth roots had not resorbed. Both patients exhibited good dental alignment, with restored function and acceptable aesthetics. This article demonstrates that the new appliance was comfortable, convenient, safe, and effective in the treatment of impacted maxillary central incisors and that its clinical use should be promoted in the future.
Topics: Child; Humans; Incisor; Maxilla; Tooth Root; Tooth Eruption; Tooth, Impacted; Cone-Beam Computed Tomography
PubMed: 36890741
DOI: 10.22514/jocpd.2023.010 -
BMC Oral Health Dec 2023The occurrence of mandibular canine impaction and/ or transmigration is a rare clinical entity but diagnosis and treatment planning is of clinical significance. The...
BACKGROUND
The occurrence of mandibular canine impaction and/ or transmigration is a rare clinical entity but diagnosis and treatment planning is of clinical significance. The associated etiological factors and the clinical guidelines for the management are still not clear. The aim of this systematic review was to summarize the available data to report the prevalence and identify the etiological factors, clinical features, and various treatment outcomes in patients with mandibular canine impaction and/or transmigration.
METHODS
The review protocol was registered in PROSPERO (CRD42021222566) and was conducted and reported according to the PRISMA and Cochrane Handbook / Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. A computerized search of studies published up to April 30, 2023, was conducted using the following databases: Medline, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Scopus, Web of Science, and Latin American and Caribbean Health Sciences Literature. A manual search of the reference and citation lists of eligible articles and existing systematic reviews for any additions were also conducted. The Newcastle-Ottawa Scale quality assessment tool was used to assess the studies' quality.
RESULTS
After removing 6 duplicates, 3700 articles were identified. For the final analysis, 19 studies published between 1985 and 2023 met all the eligibility criteria and were included. A total of 7 studies presented as good and 12 studies presented as satisfactory. Patients were screened in ten studies and diagnostic records from archives were retrieved in nine studies. The total number of diagnostic records screened was 138.394, and the total number of patients from the included studies was 43.127.
CONCLUSIONS
Based on the findings from this systematic review, the prevalence of mandibular canine impaction ranged from 0.008% to 1.29% while canine transmigration from 0.12% to 0.98%. Crowding of the mandibular arch, the presence of a retained deciduous canine, and odontoma or cyst are the etiological factors more commonly associated with mandibular canine impaction and or transmigration. Surgical extraction and surgical exposure followed by orthodontic traction are the two most frequently carried out treatment modalities in the management of mandibular canine impaction and or transmigration.
Topics: Humans; Prevalence; Mandible; Tooth, Impacted; Treatment Outcome; Cuspid
PubMed: 38062382
DOI: 10.1186/s12903-023-03717-1 -
The Pan African Medical Journal 2022
Topics: Humans; Incisor; Maxilla; Tooth Root; Tooth, Impacted
PubMed: 35855031
DOI: 10.11604/pamj.2022.41.296.33533