scholarly journals ASSESSMENT OF THE OCCLUSAL RELATIONS NATURE AT THE STAGES OF ORTHOPEDIC REHABILITATION OF PERSONS WITH PERIODONTAL TISSUE DISEASES COMPLICATED BY DENTITION DEFECTS

2021 ◽  
pp. 59-63
Author(s):  
О.V. Bida ◽  
О.V. Bida
Keyword(s):  
Dental Implants ◽  
Tooth Loss ◽  
Periodontal Diseases ◽  
Relative Strength ◽  
Control Group ◽  
Pathological Changes ◽  
Orthopedic Treatment ◽  
Computerized Analysis ◽  
Orthopedic Rehabilitation ◽  
Strength Asymmetry

Resume. According to epidemiological studies, there is still an increased prevalence of periodontal disease among the population of different regions of the world, with increasing intensity and aggressiveness. Long-term chronic generalized lesions of recurrent and progressive inflammatory-dystrophic process lead to the destruction of alveolar processes, pathological mobility of teeth, tooth loss and dentofacial dysfunctions. One of the most characteristic symptoms of generalized periodontitis is the presence of traumatic occlusion. Depending on the degree of pathological changes in periodontal tissues, the size and topography of dentition defects, the replacement of dentition pathologies should be planned by splint-type orthopedic structures and computerized analysis of occlusal relationships with T-Scan III system. The aim of the study is to improve the effectiveness of orthopedic treatment of periodontal diseases complicated by defects of the dentition with the control of occlusal relationships with a computerized T-Scan III system. Materials and methods. We have examined 87 persons aged between 30 and 69 years with generalized periodontitis of I – III severity, complicated by partial loss of teeth of different sizes and topography, and a control group of the same age in 10 patients with intact dentition and physiological forms of occlusion without clinically diagnosed periodontal diseases. Computerized analysis of occlusion indices was performed by the T-Scan III system. We have investigated the stereotype of functional loads according to the following quantitative and qualitative indicators: the index of asymmetry of force between the parts (%); time of occurrence of the maximum amount of dental contacts (sec); time of disclusion (sec); the presence of premature occlusal contacts on the natural teeth and orthopedic constructions, and the presence of changes in the direction of the trajectory of the total vector of occlusal load.  Orthopedic rehabilitation of patients in the case of periodontal diseases of the I-II degree of severity and the presence of small defects of the dentition, we conducted by splint-type orthopedic structures, dental implants, and artificial crowns of our own design with discrete occlusal loading (Licence for Effective Model No 143278, Ukraine, MPK А61С 13/007, u 2019 11487: Artificial Crown with Support on a Dental Implant). Patients with periodontal diseases of the II – III severity, complicated by defects of dentitions with different size and topography, the dental prosthetics has been performed by traditional removable and combined orthopedic splint-type constructions, and removable splint-type dentures of their own design: "Removable Prosthesis of Splint Type" (Licence for Effective Model No 130980 Ukraine, IPC (2006.01) А61С 13/007, u 2018 03039, 10.01.2019).  Computerized analysis of occlusion indicators for the patients of I and II clinical groups and the III control group has been performed before and after orthopedic treatment by T-Scan III system. Results of the research. The results of investigation for functional occlusion have demonstrated that the index of relative strength asymmetry between the sides of the dentition in patients with generalized periodontitis complicated by dentition defects increased significantly and led to nonphysiological redistribution of loads compared with indices obtained in patients from control group due to the lack of correspondence for occlusal contacts. These indices are equal to 16.7 ± 3.8% in patients of I group and 18.9 ± 4.8% in group II compared to the similar control indicators – 4.7 ± 1.01%, respectively (p≤0.01). It should be noted that these indicators have differed from the control group indicators according to the severity of the pathological process. Rational prosthetics with removable and non-removable orthopedic structures, including on the base of dental implants, helps to optimize occlusal relations. Conclusions. Occlusographic studies performed in patients with generalized periodontitis having different severity and complicated by partial tooth loss have showed increased index of relative strength asymmetry between the sides of chewing, the presence of premature contacts and incorrect location of the trajectory of the total occlusal load vector. The dynamics of pathological changes in occlusion indices corresponds to the degree of generalized periodontitis, which indicates the necessity of opportune replacement of dentition defects, taking into account the occlusal relations. Rational prosthetics helps to optimize occlusal relations.

scholarly journals Thermography of periodontal tissues in patients with partial tooth loss before and after orthopedic treatment

2020 ◽  
pp. 22-24
Author(s):  
E. N. Zhulev ◽  
E. P. Arkhangelskaya
Keyword(s):  
Tooth Loss ◽  
Periodontal Diseases ◽  
Study Data ◽  
Ease Of Use ◽  
Control Group ◽  
Orthopedic Treatment ◽  
Partial Loss ◽  
Periodontal Tissues ◽  
Non Invasive ◽  
Before And After

The article is devoted to the study of the condition of periodontal tissues in patients with diagnoses of ‘defect of hard tissue of teeth’ and ‘partial loss of teeth’ before and after orthopedic treatment using the method of thermography. The method of infrared thermography has such qualities as high information content, non-invasive research, ease of use, objectivity and complete safety. 50 patients were examined before and after prosthetics with fixed prostheses and 30 subjects of the control group with an intact periodontium. As a result of the study, data were obtained that led to the conclusion that orthopedic treatment of patients with periodontal diseases favorably affects the state of periodontal tissues, reducing inflammation, as evidenced by a decrease in thermography values after treatment.

scholarly journals OPTIMIZATION OF METHOD OF MANUFACTURING OVERLAPING DENTURES SUPPORTED BY TEETH AND DENTAL IMPLANTS

2020 ◽  
Vol 16 (1) ◽  
pp. 157-162
Author(s):  
Valentina Tlustenko ◽  
Ivan Bayrikov ◽  
Mukatdes Sadykov ◽  
Sergey Komlev ◽  
Irina Bazhutova ◽  
...  
Keyword(s):  
Dental Implants ◽  
Dental Treatment ◽  
Control Group ◽  
Advanced Manufacturing ◽  
Orthopedic Treatment ◽  
Advanced Technologies ◽  
Functional Efficiency ◽  
Abutment Teeth

Subject. Currently, there are many methods for restoring the crown of the tooth using various stump pin designs, but they are not always effective when prosthetics are removable dentures. Therefore, overlapping prostheses using locking elements and dental implants are becoming increasingly popular in the clinic of orthopedic dentistry. Locking fasteners can reduce pressure on the mucous membrane, increase functional efficiency by transferring pressure to the abutment teeth, which positively affects the stabilization and retention of orthopedic structures. The goal is to improve the quality of orthopedic treatment of partial absence of teeth with the help of overlapping prostheses based on spherical attachments, dental and collapsible dental implants. Methodology. Orthopedic treatment was performed for 27 patients (12 men and 15 women) aged 59 to 74 years, who were divided into two groups: control (10 people) and main (17 people). For patients of the control group, dental treatment was carried out using partial removable laminar prostheses using generally accepted technologies, the main one using advanced technologies for the manufacture of removable dentures and collapsible dental implants. Results. The use of removable orthopedic constructions based on teeth and dental implants using an advanced manufacturing technology (RF Patents No. 2593349, 2708828, 2588488 for an invention) made it possible to carry out dental treatment of patients with partial absence of teeth. An assessment of the quality of hygiene of removable dentures. Conclusions. The effectiveness of prosthetics depends on the rational choice of the orthopedic design and the use of dental implants, as well as the correct assessment of the periodontal condition of the abutment teeth and the determination of contraindications for the manufacture of cast stump pin inlays with spherical locks.

scholarly journals Features of substitution of defects of tooth rows in persons with periodontal tissue diseases of different severity

2021 ◽  
Vol 105 (1) ◽  
pp. 82-87
Author(s):  
O. Doroshenko ◽  
◽  
O. Bida ◽  
Keyword(s):  
Periodontal Disease ◽  
Bone Tissue ◽  
Dental Implants ◽  
Alveolar Bone ◽  
Periodontal Diseases ◽  
Pathological Process ◽  
Periodontal Tissue ◽  
Dental Implantation ◽  
Orthopedic Rehabilitation ◽  
Abutment Teeth

Resume. The high prevalence of periodontal disease causes the urgency of finding ways to improve methods of diagnosis, treatment and prevention of complications of this disease. The complex clinical picture requires a differentiated approach to the choice of orthopedic rehabilitation of such patients taking into account the patient's age, degree of pathological changes and activity of the pathological process with mandatory immobilization of movable teeth by different types of splints and splint dentures. Depending on the degree of pathological changes in periodontal tissues, the size and topography of dentition defects and the severity of destructive-resorptive processes in the alveolar bone, the replacement of dentition defects should be planned using dental implants and splinttype dentures. The aim of the study. Improving the effectiveness of orthopedic treatment of periodontal diseases, burdened by defects of the dentition through the differentiated use of dental implants and splinting structures. Materials and methods. A comprehensive clinical and laboratory examination of 237 patients with clinically diagnosed periodontitis I–III degree, burdened by partial loss of teeth. From the specified contingent of persons we carried out orthopedic treatment of 98 patients aged from 30 to 69 years with periodontal diseases of various severity, aggravated by defects of dentitions of various size and localization. Cone-beam computed tomography was used for objective quantitative and qualitative assessment of periodontal tissue and bone tissue of the edentulous jaw in individuals with various clinical forms of periodontal disease, to determine the relative densitometric density of bone tissue, when planning dental implantation and for control its results. The localization of supracontacts was determined by occlusion. Diagnosis and elimination of traumatic occlusion were performed according to Jenkelson and Schuller [3]. Evaluation of the stability of dental implants was performed by frequency – resonance analysis of the stability of dental implants using the Osstell ISQ device. Results. According to the results of examination of 237 people and the division of patients into three age groups, the clinical features of the pathological process in the age aspect were established. The results of computed tomography of the dental apparatus of the subjects showed that periodontal disease in the age aspect in the dynamics is accompanied by the severity of destructive-resorptive processes in the alveolar bone, which are manifested in a decrease in the relative densitometric density of bone marrow and bone loss. Orthopedic rehabilitation of this contingent of persons was performed with the use of biologically indifferent structural materials and splinting orthopedic structures, including splinting of abutment teeth, removable prosthetics and dental implantation, as well as accompanying physiotherapy of prostheses. In the case of periodontitis of I–II degree with sufficient volume and density of bone tissue in the area of the dentition defect, high clinical efficacy was shown by the use of dental implantation in the case of gradual loading of the dental implant using a superstructure of own development. In the presence of medium and large defects of the dentition on the background of periodontitis II–III severity in the presence of significant pathological mobility of abutment teeth and insufficient volume and density of bone tissue in the area of the defect sufficient clinical effectiveness showed the use of removable dentures own design. Conclusions. Periodontal diseases in the age aspect in the dynamics are accompanied by pronounced destructive-resorptive processes in the alveolar bone, which are manifested by a decrease in the relative densitometric density of bone tissue and progressive loss of height of the alveolar process. Timely application of dental implantation due to the dosed gradual occlusal load on the alveolar bone helps to preserve the structure of the alveolar bone and the height of the alveolar process. In the presence of medium and large defects of the dentition on the background of periodontitis II–III severity in the presence of significant pathological mobility of abutment teeth and insufficient volume and density of bone tissue in the area of the dentition defect, the use of removable dentures of splinttype design is shown. To prevent complications of prosthetics and prolong the use of orthopedic structures, it is advisable to use photodynamic maintenance therapy. Key words: periodontal tissue disease, dentition defect, dental implantation, splint-type denture.

A STUDY ON ASSOCIATION 0F TOOTH LOSS & PERIODONTAL DISEASE IN PATIENTS SUFFERING FROM DIABETES FROM BIHAR REGION

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Kumar Manish ◽  
Nikita Raman ◽  
Abhishek Gautam ◽  
Samir Jain ◽  
Prakash Chandra Jha ◽  
...  
Keyword(s):  
Periodontal Disease ◽  
Tooth Loss ◽  
Alveolar Bone ◽  
Inflammatory Diseases ◽  
Periodontal Diseases ◽  
Control Group ◽  
Diabetic Patients ◽  
Diabetes Group ◽  
The Individual ◽  
Tissue Attachment

Diabetes is one of the common diseases of modern times and one of the most common systemic disorder that is connected to periodontal disease. Periodontal diseases are bacterially induced chronic inflammatory diseases affecting the tissues surrounding and supporting the teeth. The lesion begins as gingivitis, an inflammation of the gingival tissues only, and may progress to periodontitis, where destruction of connective tissue attachment and alveolar bone can eventually lead to tooth loss. Hence based on above reported findings the present study was planned for study of prevalence of tooth Loss in Patients Suffering from Diabetes from Bihar Region. The present study was planned in Department of Dentistry, Anugrah Narayan Magadh Medical College and Hospital, Gaya, Bihar. Total 100 cases were enrolled in the present study. In the enrolled patients 50 cases were Diabetic and 50 were non-diabetic cases. The data generated from the present study concludes that periodontal disease increases in diabetes group than in control group. Thus, a diabetic patient should always see that he/she maintains his/her oral hygiene by following proper tooth brushing habits. Diabetics should take care to see that they get their teeth restored as early as possible, if decayed. They should follow the instructions given by the physician or the dietician for the intake of non-cariogenic diet. The prevention of periodontal breakdown in diabetic patients is mostly based on the education of the individual. Thus, patients should be informed about the importance of oral health for diabetics, and they should be taught that the main symptom of periodontal disease is gingival bleeding. Keywords: Tooth Loss, Diabetes, periodontal disease, bihar, etc

scholarly journals Effect of various types of removable appliances and dental implants on the oral microbiocenosis during orthopedic treatment

2019 ◽  
pp. 52-56
Author(s):  
VP Tlustenko ◽  
IM Bayrikov ◽  
DA Trunin ◽  
SS Komlev ◽  
AV Zhestkov ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Dental Implants ◽  
Dental Implant ◽  
Oral Mucosa ◽  
Control Group ◽  
Qualitative Composition ◽  
Orthopedic Treatment ◽  
Index Group ◽  
Normal Microflora ◽  
Removable Appliances

The problem of complications arising after dental implantation is still relevant. The aim of the work was to investigate the effect of various types of removable appliances and dental implants on the oral microbiocenosis during orthopedic treatment of 64 people: 12 patients of the first index group, 40 patients of the second index group and 12 people of the control group. 6 months after the implants were installed, as a result of a microbiological study of the oral cavity, the differences were found in the qualitative composition of the microflora of the mucous membrane around the neck of the dental implant. In the first index group representatives of normal microflora prevailed. In 100% of cases Streptococcus vestibularis was isolated, from more than half patients S. oralis, S. mitis, Rothia mucilaginosa were isolated, S. gordonii was isolated from one patient. In the second index group, a significant diversity of microbial species was observed, including enterobacteria, which were isolated from 22.5% of the examined patients. In the control group, in addition to representatives of the normal microflora of the oral mucosa S. vestibularis (75.5%), S. oralis (50.0%), Neisseria subflava (66.7%) and Haemophylus parainfluenzae (50.0%) were found. From all patients of the control groups S. gordonii was isolated, as well as the other potentially pathogenic streptococci species, S. anginosus and S. constellatus by 66.7%. The type of removable appliances and dental implants used affects the microflora composition of the oral cavity, and, consequently, the further prognosis and the risk of complications. Collapsible dental implant supported removable prosthetic appliances with a metal frame and fixing elements, telescopic crowns and clasps less than other types of prosthetic appliances change the qualitative composition of the microflora of the oral mucosa around the neck of the dental implant.

scholarly journals ORTHOPEDIC RESTORATION OF PARTIAL TOOTH LOSS AND WAYS OF ITS IMPROVEMENT

2020 ◽  
pp. 70-74
Author(s):  
I.R. Stupnytskyi ◽  
R.M. Stupnytskyi
Keyword(s):  
Tooth Loss ◽  
Periodontal Diseases ◽  
Experimental Studies ◽  
Original Method ◽  
Orthopedic Treatment ◽  
Working Model ◽  
Masticatory Efficiency ◽  
Functional Efficiency ◽  
Dental Hard Tissues ◽  
Metal Ceramic

The increase in the prevalence and intensity of dental diseases in modern conditions, such as caries and its complications, non-carious lesions and pathological abrasion of dental hard tissues and periodontal diseases, leads to partial tooth loss and persistent pathological morpho-functional changes of the dentoalveolar system. Partial tooth loss is accompanied by changes in almost all areas of the dentoalveolar system and leads to a number of complications, including deformations of the dentition. At the same time, changes in the neuromuscular system, dysfunction of the temporomandibular joints (TMJ), aesthetic, phonetic and functional disorders are often involved in clinical symptoms. Pathological morphological changes significantly complicate orthopedic treatment, and often make it impossible without the use of a set of special preparatory measures. To restore the integrity of the dentition and the functional efficiency of the masticatory apparatus, various designs of dentures are used, which are divided into fixed and removable according to the terms of fixation, and their choice is determined by the list of indications and contraindications for manufacturing. It is known that non-removable structures are much more widely used as compared to removable prostheses, as they have a number of advantages: restoration of masticatory efficiency by 95-100%, high aesthetics and accuracy, good fixation and quick adaptation to them. The main condition of orthopedic treatment with bridges is the presence of defects limited by teeth. They are used in case of a defect of the dentition, which consists in the loss of no more than 3 lateral teeth and 4 teeth in the frontal jaw. The sizes of dental bridges do not go beyond the dentition and they transfer the masticatory load to the jawbone through the periodontium, i.e., naturally. Because of this, they are considered more physiological than other prostheses. Bridge prostheses virtually do not disrupt the speech, temperature, tactile and taste sensitivity. Orthopedic treatment of dentition defects is also carried out with the help of removable structures, which include removable bridges, arches and partial laminar dentures. The advantage of removable dentures is their high hygiene, but the problems include proper fixation, long-term adaptation, aesthetic requirements and full recovery of masticatory efficiency. The aim of the research is to improve the quality of orthopedic care for patients with defects of the dentition with the help of bugel prostheses on clasps by introducing an original method of their manufacture. Material and methods of experimental studies. We made 138 solid bugel prostheses (84 – the upper jaw, and 54 – the lower jaw), 48 bridge prostheses (39 metal-ceramic, 9 with photopolymer facing). We observed 95 patients aged from 23 to 74 years (52 men, 53 women) during the period of 5 years. In all patients, the defects of the dentition were replaced with solid bugel prostheses on the clasps, according to our original method: Upon receipt of the impression for the metal-ceramic non-removable structure with a clasp, the previously made temporary plastic crowns were fixed on the prepared teeth, and then the impression was obtained with the impression spoon together with the temporary crowns and removed from the oral cavity. The working model was cast on the obtained imprint. The proposed method makes it possible to simultaneously obtain an impression on the basis of which a working model is made for the manufacture of both fixed and removable parts of the orthopedic structure, which avoids the repetition of clinical and technical stages of prostheses manufacture, reduce their number, improve the accuracy of connecting removable and non-removable structures, and saves materials and time for doctor and patient.

Comparative analysis of polymorphic variants of IL-17A and MMP-1 genes with the risk of developing chronic periodontitis in petrochemical workers

2020 ◽  
Vol 60 (10) ◽  
pp. 687-693
Author(s):  
Iskander I. Zaidullin ◽  
Denis O. Karimov ◽  
Lilija K. Karimova ◽  
Milyausha F. Kabirova ◽  
Rasima R. Galimova ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Chronic Periodontitis ◽  
Periodontal Diseases ◽  
Clinical Manifestations ◽  
Control Group ◽  
Periodontal Tissues ◽  
Dental Examination ◽  
Number Of Patients ◽  
Increased Risk ◽  
Harmful Substances

The susceptibility to the development and progression of inflammatory periodontal diseases, which depends on genetic and external factors (smoking, stress, oral hygiene), varies widely. In the development of these diseases, an important role is played not only by the presence of periodontal pathogenic microorganisms, but also by the presence of congenital or acquired immunodeficiency, immunoregulatory defects. The immune system plays a key role in the physiological and pathological processes of periodontal tissues. In this regard, IL17, produced by CD4+ Th cells, which has both Pro-inflammatory and protective activity, is of particular interest in the pathogenesis of periodontitis. The aim of study was to identify the relationship between polymorphic loci of the IL-17A (rs2275913) and MMP-1 (rs1799750) genes and clinical manifestations of chronic periodontitis in petrochemical workers. Dental examination was performed in 92 ethylene oxide production workers with chronic periodontitis and 74 patients with chronic periodontitis who did not come into contact with chemical factors (control group). Genotyping of polymorphisms rs2275913 of the IL17A gene and rs1799750 of the MMP1 gene was performed by allele-specific real-time polymerase chain reaction (PCR). Hygienic assessment of the degree of air pollution of the working area with harmful substances was carried out by gas chromatography according to the guidelines for the determination of harmful substances in the air № 5098-89, № 3119-84. When comparing the results of studies of both groups, there were no statistically significant differences in the frequency distributions of allelic variants and genotypes of the IL-17A and MMP-1 genes. The AA/AG genotypes of the IL-17A gene were associated with an increased risk of severe disease compared to the GG genotype in workers in the main group (OR=6.1; 95% CI 1.33-28.5; p=0.021) and in the control group (OR=7.26; 95% CI 1.34-39.25; p=0.016). Carriers of the A allele in the control group increased the risk of severe chronic periodontitis by 2.4 times compared to carriers of the G allele (OR=2.41; 95% CI 1.19-4.87; p=0.014). During the dental examination of employees of the ethylene oxide plant, the clinical course of periodontal diseases was more severe in comparison with the control group, and the number of patients with severe periodontitis was twice as high. It was found that the AA/AG genotypes of the IL-17A gene and the carrier of the A allele are associated with increased susceptibility to the development of severe chronic periodontitis. The association between the MMP-1 gene polymorphism and the risk of severe forms of chronic periodontitis has not been established. A risk factor for the development of inflammatory periodontal diseases in employees of the petrochemical complex is a complex of harmful production factors.

Microbiological substantiation of application of phytopreparations in treatment of inflammatory periodontal diseases

2019 ◽  
Vol 24 (3) ◽  
pp. 196-202 ◽  
Author(s):  
S. A. Abdurakhmanova ◽  
G. S. Runova ◽  
M. S. Podporin ◽  
E. V. Tsareva ◽  
E. V. Ippolitov ◽  
...  
Keyword(s):  
Tooth Loss ◽  
Periodontal Diseases ◽  
Adult Population ◽  
Experimental Studies ◽  
Herbal Medicines ◽  
Growth Dynamics ◽  
Integrated Approach ◽  
Bacterial Populations ◽  
Streptococcus Constellatus ◽  
Urgent Task

Relevance: Inflammatory-destructive periodontal diseases are the most complicated and became the main cause of tooth loss in adult population. Herbal medicines have a variety of pharmacological properties, so the development and introduction of new forms for the treatment of inflammatory periodontal diseases is an urgent task today.Purpose – experimental evaluation of effectiveness of the use of herbal medicines “Tonzinal” and “CM-1” in relation to the priority periodontal pathogenes.Materials and methods: in experimental studies, the basis for the experiment was the system for the cultivation of microorganisms in real time – the Revers-Spinner RTS-1 bioreactor. With the priority strains of periodontitis pathogens, the study of the growth dynamics of the culture was carried out in several parallels.Results: herbal medicines “CM-1” and “Tonsinal” has a multilateral therapeutic effect, exerting a diverse influence on the key stages of development of such bacterial populations as Aggregatibacter actinomycetemcomitans, Streptococcus constellatus, Candida albicans.Conclusion: tan integrated approach in the treatment of patients with inflammatory periodontal diseases is promising and will contribute to a more prolonged remission and increase the effectiveness of treatment. 

A STUDY ON CLINICAL AND X - RAY FEATURES OF PARTIALLY  EDENTULOUS PATIENTS WITH DENTAL IMPLANT

2011 ◽  
pp. 96-103
Author(s):  
Quang Hai Nguyen ◽  
Toai Nguyen
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Tooth Loss ◽  
Permanent Teeth ◽  
Missing Teeth ◽  
X Ray ◽  
Lower Jaw ◽  
Molar Teeth ◽  
Edentulous Patients ◽  
Missing Tooth

1. Background: Loss of permanent teeth is very common, affected chewing function, speech and aesthetics; restoration of missing teeth with dental implant has several advantages, but we need thoroughly study the clinical and X ray features at the position at missing teeth, then to select the type of implant and make the best plan for the dental implant patients. 2. Materials and method: Cross-section descriptive study. From January 2009 to November 2010, study with 56 patients with 102 implants of MIS and Megagen systems at the Faculty of Odonto-Stomatology, Hue College of Medicine and Pharmacy and Vietnam-Cuba Hospital in Ha Noi. 3. Results: Distributed equally in male and female, common ages 40 – 59 (55,4%), the majority of missing teeth occurs in the lower jaw (63,8%) and especially, the teeth 36 and 46 (25,4%). The majority of missing teeth due to dental caries, dental pulp and apical diseases (64,7%) of the molar teeth (51,9%); the most position of missing tooth have enough bone for dental implants (87,3%), time of tooth loss and bone status in the position of tooth loss are related to each other (p < 0,01). Diameter and length of implant usually used 4.0 – 6.0 mm (63,7%) and 8.5 – 13.0 mm (83,3%). 4. Conclusion: Clinical and X ray features of edentulous patients has an important role in determining the type of implants and treatment planning of dental implants. Key words: Loss of permanent teeth, X ray and clinical features, Dental implant.

scholarly journals Association of Tooth Scaling with Acute Myocardial Infarction and Analysis of the Corresponding Medical Expenditure: A Nationwide Population-Based Study

2021 ◽  
Vol 18 (14) ◽  
pp. 7613
Author(s):  
Yi-Wei Kao ◽  
Ben-Chang Shia ◽  
Huei-Chen Chiang ◽  
Mingchih Chen ◽  
Szu-Yuan Wu
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Periodontal Diseases ◽  
Population Based ◽  
Medical Expenditure ◽  
Control Group ◽  
Proportional Hazard ◽  
Population Based Study ◽  
Scaling Group

Accumulating evidence has shown a significant correlation between periodontal diseases and systemic diseases. In this study, we investigated the association between the frequency of tooth scaling and acute myocardial infarction (AMI). Here, a group of 7164 participants who underwent tooth scaling was compared with another group of 7164 participants without tooth scaling through propensity score matching to assess AMI risk by Cox’s proportional hazard regression. The results show that the hazard ratio of AMI from the tooth scaling group was 0.543 (0.441, 0.670) and the average expenses of AMI in the follow up period was USD 265.76, while the average expenses of AMI in follow up period for control group was USD 292.47. The tooth scaling group was further divided into two subgroups, namely A and B, to check the influence of tooth scaling frequency on AMI risk. We observed that (1) the incidence rate of AMI in the group without any tooth scaling was 3.5%, which is significantly higher than the incidence of 1.9% in the group with tooth scaling; (2) the tooth scaling group had lower total medical expenditures than those of the other group because of the high medical expenditure associated with AMI; and (3) participants who underwent tooth scaling had a lower AMI risk than those who never underwent tooth scaling had. Therefore, the results of this study demonstrate the importance of preventive medicine.

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