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Li XX, Wang MT, Wu ZF, Sun Q, Ono N, Nagata M, Zang XL, Ono W. Etiological Mechanisms and Genetic/Biological Modulation Related to PTH1R in Primary Failure of Tooth Eruption. Calcif Tissue Int 2024; 115:101-116. [PMID: 38833001 DOI: 10.1007/s00223-024-01227-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 05/07/2024] [Indexed: 06/06/2024]
Abstract
Primary failure of eruption (PFE) is a rare disorder that is characterized by the inability of a molar tooth/teeth to erupt to the occlusal plane or to normally react to orthodontic force. This condition is related to hereditary factors and has been extensively researched over many years. However, the etiological mechanisms of pathogenesis are still not fully understood. Evidence from studies on PFE cases has shown that PFE patients may carry parathyroid hormone 1 receptor (PTH1R) gene mutations, and genetic detection can be used to diagnose PFE at an early stage. PTH1R variants can lead to altered protein structure, impaired protein function, and abnormal biological activities of the cells, which may ultimately impact the behavior of teeth, as observed in PFE. Dental follicle cells play a critical role in tooth eruption and root development and are regulated by parathyroid hormone-related peptide (PTHrP)-PTH1R signaling in their differentiation and other activities. PTHrP-PTH1R signaling also regulates the activity of osteoblasts, osteoclasts and odontoclasts during tooth development and eruption. When interference occurs in the PTHrP-PTH1R signaling pathway, the normal function of dental follicles and bone remodeling are impaired. This review provides an overview of PTH1R variants and their correlation with PFE, and highlights that a disruption of PTHrP-PTH1R signaling impairs the normal process of tooth development and eruption, thus providing insight into the underlying mechanisms related to PTH1R and its role in driving PFE.
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Affiliation(s)
- Xiao-Xia Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, China
| | - Man-Ting Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, China
| | - Zhi-Fang Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, China
| | - Qiang Sun
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, China
| | - Noriaki Ono
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA
| | - Mizuki Nagata
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA
| | - Xiao-Long Zang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, 310000, China.
| | - Wanida Ono
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA.
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Takaichi M, Tomihara K, Terashima R, Ichijo H, Kamisaki Y, Fujiwara K, Noguchi M. Total paranasal sinus aplasia with multiple impacted teeth: A case report. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, MEDICINE, AND PATHOLOGY 2021. [DOI: 10.1016/j.ajoms.2020.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Third molar impaction in the Jazan Region: Evaluation of the prevalence and clinical presentation. Saudi Dent J 2020; 33:194-200. [PMID: 34025081 PMCID: PMC8117367 DOI: 10.1016/j.sdentj.2020.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 11/20/2022] Open
Abstract
Objective To provide information on the prevalence and clinical features of impacted third molar teeth in the South-Western region of Saudi Arabia. Material and methods In this cross-sectional study, 1200 panoramic radiographs (50% males and 50% females) were retrieved from the electronic clinical records of patients at the College of Dentistry, Jazan University from December 2014 to December 2016, and impacted third molars were evaluated. Data on clinical and radiographic presentation were analyzed. Results Overall, there were 291 (24.3%) patients with impacted third molars among 1200 radiographs. The distribution of impacted third molars according to the number of impacted teeth was as follows: one impaction in 121 (41.6%); two impactions in 90 (30.9%); three impactions in 42 (14.4%); and four impactions in 38 (13.1%) patients. There was a high prevalence of all impaction types among females (54.5%). Maxillary vertical angulation was most common (50%) followed by mandibular mesioangular angulation (48.3%). The depth of impaction in maxillary teeth was higher than in mandibular teeth. Pain was uncommon (4.5% of patients). Discussion Clinically, vertical impaction in the maxilla was present in 50% of patients because of limited posterior space, and mesioangular angulation in the mandible was present in 48% of patients because of inadequate space between the ramus and the second molar. These findings are similar to other reports. Vertical impaction of the maxillary wisdom tooth is mostly related to the discrepancy between the mesiodistal size of the tooth crown and the limited retromolar space. Conclusion Noiseless presentation of an impacted third molar requires raising the population’s awareness about the need for diagnosis and treatment of the problem to avoid any further complications. The study can be to guide surgical procedures. This study documented the prevalence, pattern, and clinical features of impacted third molars in South Western region of Saudi Arabia.
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Schroeder MA, Schroeder DK, Capelli Júnior J, Santos DJDS. Orthodontic traction of impacted maxillary canines using segmented arch mechanics. Dental Press J Orthod 2019; 24:79-89. [PMID: 31721951 PMCID: PMC6833935 DOI: 10.1590/2177-6709.24.5.079-089.sar] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/31/2019] [Indexed: 11/22/2022] Open
Abstract
The principles of orthodontic mechanics strongly influence the success of impacted canine traction. The present study discusses the main imaging exams used for diagnosis and localization of impacted canines, the possible associated etiological factors and the most indicated mechanical solutions.
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Affiliation(s)
| | | | - Jonas Capelli Júnior
- Private practice (Rio de Janeiro/RJ, Brazil).,Universidade do Estado do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontologia Preventiva e Comunitária (Rio de Janeiro/RJ, Brazil)
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Hariharan A, Dhanaraj SP. Implant supported prosthesis on edentulous mandible with multiple impacted teeth - a case report with 5 year follow up. J Indian Prosthodont Soc 2019; 19:369-373. [PMID: 31649447 PMCID: PMC6803803 DOI: 10.4103/jips.jips_375_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/03/2019] [Accepted: 09/10/2019] [Indexed: 12/01/2022] Open
Abstract
Multiple impacted teeth are quite often syndromically related, which could be hormonal or metabolic. It may be also due to infection, cyst, or trauma. A number of idiopathic multiple impacted teeth cases have been reported in the literature. In most of these situations, the impacted teeth are few in number. Here, we present a case with all mandibular teeth impacted. The number of reports in the literature of rehabilitation of such a clinical situation is very less. Impacted teeth can significantly complicate the rehabilitation of an otherwise straight forward case. When all teeth are impacted, the situation becomes even more complex. This case report illustrates prosthodontic rehabilitation of mandibular arch of a 24-year-old, asyndromic patient with implant-retained dentures following the surgical removal of impacted teeth. The objective of presenting this clinical report is primarily to increase the awareness, with which, the rehabilitation can be handled in a similar situation and also for the fact that such a report is a rarity.
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Affiliation(s)
- Annapoorni Hariharan
- Department of Prosthodontics and Crown and Bridge, Faculty of Dental Sciences, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Siva Prakash Dhanaraj
- Department of Prosthodontics and Crown and Bridge, Faculty of Dental Sciences, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
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Moturi K, Kaila V. Management of Non-syndromic Multiple Impacted Teeth with Dentigerous Cysts: A Case Report. Cureus 2018; 10:e3323. [PMID: 30473956 PMCID: PMC6248745 DOI: 10.7759/cureus.3323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Impacted teeth may not only interfere with function, but also can act as a source of many pathological lesions such as odontogenic cysts and tumors. One of the most prevalent types of odontogenic cysts associated with erupted, developing or impacted tooth is dentigerous cyst. Multiple impacted teeth with dentigerous cysts in both the maxillary and mandibular arches without the association of any syndromes is a very rare occurrence. In the present article, we report such a non-syndrome case of bilateral multiple impacted teeth in both maxilla and mandible with dentigerous cysts treated with enucleation and ridge augmentation with autogenous bone graft harvested from posterior iliac region. Further, dental rehabilitation was carried out with dentures.
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Affiliation(s)
- Kishore Moturi
- Oral and Maxillofacial Surgery, Vishnu Dental College, Bhimavaram, IND
| | - Vini Kaila
- Oral and Maxillofacial Surgery, Vishnu Dental College, Bhimavaram, IND
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Robert Moshy J, Singh Sohal K, Chindia M. Concurrent manifestation of clinical hypodontia and blindness: a case report. J Dent Res Dent Clin Dent Prospects 2017; 11:53-55. [PMID: 28413597 PMCID: PMC5390127 DOI: 10.15171/joddd.2017.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 08/09/2016] [Indexed: 11/09/2022] Open
Abstract
A case is reported of a 26-year-old blind man with hypodontia and multiple apparently underdeveloped impacted teeth. The patient reported that he had progressively developed visual impairment at the age of 11 years whence he became totally blind when he turned 12 years. The aim of this report is to open an academic and professional debate on the challenges of its definitive diagnosis and appropriate intervention.Blindness is not reported in any of the previously described syndromes; therefore, concurrent manifestation of "hypodontia, blindness, failure of eruption and digital lesions" can be proposed as a syndrome. However, in the absence of genetic studies, it is difficult to characterize this case with any one of the specifically documented syndromes; therefore, academic and professional discourse is suggested with regard to appropriate intervention.
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Affiliation(s)
- Jeremiah Robert Moshy
- Senior Lecturer, Department of Oral and Maxillofacial Surgery, Muhimbili University of Health and Allied Sciences, Dar-es-Salaam, Tanzania
| | - Karpal Singh Sohal
- Postgraduate Student, Department of Oral and Maxillofacial Surgery, Department of Dental Services, Muhimbili National Hospital, Dar-es-Salaam, Tanzania
| | - Mark Chindia
- Professor, Department of Oral and Maxillofacial Surgery, Oral Pathology and Oral Medicine, University of Nairobi, Nairobi, Kenya
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Shetty K, Kumar M, Amanna S, Sridharan S, Reddy S. Management of a rare case of idiopathic multiple unerupted impacted permanent teeth in an adult female patient. J Indian Prosthodont Soc 2016; 16:303-6. [PMID: 27621553 PMCID: PMC5000573 DOI: 10.4103/0972-4052.161572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This clinical case report describes the multi-disciplinary approach in the management of an unusual presentation of idiopathic multiple unerupted impacted permanent teeth in a 20-year-old female patient. The case was unique in that, not only were there multiple missing permanent teeth, but also over retained deciduous teeth and attrited existing permanent teeth with loss of vertical dimension of occlusion. Since the patient was young, it was decided to retain all the erupted permanent teeth and extract the infected deciduous teeth with the objective of fabricating overlay complete dentures. This is a simple, reversible and an economical treatment modality, which satisfies both the esthetic and functional demands where the extraction of teeth is not generally indicated and, in addition, provides a stable occlusion.
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Affiliation(s)
- Karunakar Shetty
- Department of Prosthodontics, Bangalore Institute of Dental Sciences and Postgraduate Research Centre, Bengaluru, Karnataka, India
| | - Mahesh Kumar
- Department of Prosthodontics, Bangalore Institute of Dental Sciences and Postgraduate Research Centre, Bengaluru, Karnataka, India
| | - Susan Amanna
- Department of Prosthodontics, Bangalore Institute of Dental Sciences and Postgraduate Research Centre, Bengaluru, Karnataka, India
| | - Srirangarajan Sridharan
- Department of Periodontics, Bangalore Institute of Dental Sciences and Postgraduate Research Centre, Bengaluru, Karnataka, India
| | - Satyanarayan Reddy
- Department of Conservative Dentistry and Endodontics, Bangalore Institute of Dental Sciences and Postgraduate Research Centre, Bengaluru, Karnataka, India
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Msagati F, Simon ENM, Owibingire S. Pattern of occurrence and treatment of impacted teeth at the Muhimbili National Hospital, Dar es Salaam, Tanzania. BMC Oral Health 2013; 13:37. [PMID: 23914842 PMCID: PMC3750328 DOI: 10.1186/1472-6831-13-37] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Accepted: 07/26/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Impacted teeth predispose to periodontal disease and dental caries of adjacent teeth resulting in pain, discomfort and loss of function. This study analyzed the pattern of occurrence of impacted teeth, associated symptoms, treatment and complications of treatment in patients who presented at the Muhimbili National Hospital, Tanzania. METHOD This was a crossectional descriptive study which utilized notes and x rays of patients who were treated for impacted teeth at the Oral and Maxillofacial firm in Muhimbili National Hospital over five years, from January 2005 to August 2010. These records were retrieved and examined for the major complaint of the patient at presentation to hospital, demography, impacted tooth, type of impaction (for third molars), treatment offered and complications after treatment. Similar information was collected from all patients with impacted teeth attended in the same centre from 1st September 2010 to 31st August 2011. RESULTS A total of 896 patients (496 males and 400 females) treated for complaints related to impacted teeth were recorded. The male to female ratio was 1.2:1, age range of 16 to 85 years and a mean age of 28.9 years (SD = 9.5). Slightly more than 84% of the patients presented with mandibular third molar impactions. Most (44.7%) of these patients had an impacted lower right third molar followed by those presenting with a lower left third molar impaction (39.7%). In 1.3% of the patients all the four third molars were impacted. Sixty nine (7.7%) patients had impacted upper 3rd molars while 2% had impacted upper canines. Of the mandibular 3rd molar impactions 738 (76%) were mesio-angular type, 87 (8.9%) horizontal type and 69 (7.1%) disto-angular. Patients presented with a variety of complaints. About 85% of the patients presented to hospital due to varying degrees of pain. In 4.9% the detection of the impacted tooth/teeth was coincidental after presenting to hospital for other reasons not related to the impaction. Majority of the patients with impacted mandibular third molars had carious lesions on the impacted teeth, neighbouring tooth or both. Four hundred and five (45.2%) patients had a carious lesion on one of the impacted teeth while 201(22.4%) patients had a carious lesion on the adjacent second molar. In 122 (13.6%) patients both the impacted third molar and the adjacent second molar were carious. In twelve patients who presented with a main complaint of fracture of the angle of the mandible there was an associated impacted 3rd molar. Eight hundred and fifteen (91%) patients with impacted teeth were treated by surgical removal. Among these only 15 (1.8%) had complications that ranged from excessive swellings, trismus and severe pain post operatively. One patient was reported to have fracture of the angle of the mandible sustained during surgical removal of an impacted 48. CONCLUSIONS The majority of patients with impacted teeth were young with an almost equal sex distribution. The most commonly impacted teeth were mandibular third molars followed by the maxillary third molars. Patients with impacted teeth reported for health care predominantly because of pain due to dental caries or infection.
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