1,721,112 research outputs found
Dental Materials Design and Innovative Treatment Approach
Full text linkin recent years, technological innovation has had exponential growth, resulting in positive implications in dentistry [...]
Melatonin as an index of periodontal disease
Full text linkperiodontal disease affects the supporting tissues of the tooth. the clinical manifestation varies from gingivitis to periodontitis. periodontal disease is triggered by bacterial infection that releases toxins. the imbalance between oxidants and antioxidants determines the progression of periodontal disease. melatonin (MEL) (N-acetyl-5-methoxytryptamine) is a hormone in the human body. Its production takes place in various organs including the retina, gastrointestinal tract, bone marrow, leukocytes, lymphocytes, skin, and principally pineal gland. its main function is the regulation of circadian and seasonal rhythm, body weight, reproduction, bone metabolism, and tumor growth. an important function of melatonin is the ability to reduce oxidative stress. the aim of this work is to explain if there are differences in salivary melatonin concentration between periodontal and healthy individuals. the study was conducted utilizing the main scientific databases (pubmed, , and web of science). the time window considered for the electronic search w medline as from march 1, 2007, to march 1, 2020. the work takes into account 6 works on the disease. other studies were excluded as they did not meet the inclusion criteria. studies revealed a concentration of salivary melatonin compared to patients with periodontal disease. studies agree that the concentration of melatonin is lower in people with periodontal disease. only one study showed no difference in concentration. melatonin, therefore, has a protective effect on the periodontium thanks to its antioxidant properties. the salivary measurement of melatonin could be a useful tool for early detection. it can also be used as a therapy to improve the symptoms of periodontal disease
Low-level laser therapy in the treatment of muscle-skelet pain in patients affected by temporomandibular disorders
Full text linkBackground. The purpose of the study is to evaluate the effectiveness of Low-Level Laser Therapy in reducing joint and muscle pain in patients with acute and chronic temporomandibular dysfunction. Materials and methods. The study was conducted on a sample of 180 patients. The sample was divided into two groups according to the time of onset of the disease: acute TMD (<6 months) and chronic TMD (> 6 months). The treatment for all patients provided for the irradiation with Diode Laser Wiser Doctor Smile with tip plane wave at wavelength of 830 nm, continuous beam to 40nW diameter and radius of 6 mm. The irradiated areas were the joint area, temporal, masseter and pterygoid. The irradiation time for each zone was 60s.The protocol adopted consisted of two weekly treatment for six weeks. Pain assessment was performed using the Visual Analog Scale (VAS), in which different scores (s) depending accused of pain by the patient: s0 no pain, s1-3 mild pain, s4-6 moderate pain, s7-9 severe pain and s10 excessive pain. The pain monitoring was performed before treatment, after 15 days and after one month. Results. The sample included 80 patients with acute TMD and 100 with chronic TMD. The sample belonging to acute TMD group before treatment, was distributed as follows: 0% in s0; 12,5% in s1-3; 31.3% in s4-6; 53.6% in s7-9 and 2.5% in s10. After 15 days the distribution was was as follows: 6.25% in s0; 47.5% in s1-3; 20% in s4-6; 26.3% in s7-9 and 0% in s10. After 30 days the sample was well distributed: 35% in s0; 45% in 1-3; 10% in s4-6; 10% in s7-9 and 0% in s10. The sample belonging to the chronic TMD group, at time zero, was as follows: 0% at s0; 48% in S1-3; 35% in s4-6; 15% in s7-9 and 2% in s10. After 15 days the distribution was: 29% in s0; 28% in S1-3; 33% in s4-6; 10% in s7-9 and 0% in s10. After 30 days the sample was well distributed: 45% in s0; 36% in S1-3; 15% in s4-6; 4% in s7-9 and 0% in s10. Conclusions. The Low-Level-Laser-Therapy is a valuable tool that can significantly decrease the perception of pain in patients with temporomandibular joint dysfunction, acute and chronic
Autogenous Dentin Particulate Graft for Alveolar Ridge Augmentation with and without Use of Collagen Membrane: Preliminary Histological Analysis on Humans
Full text link(1) Background: The phenomenon of ankylosis of the dental elements has led clinicians to think that properly treated dentin and cement may be a potential graft for alveolar ridge augmen-tation. Currently, there are no studies in the literature able to histomorphometrically compare the healing patterns of an autogenous dentin particulate graft with the association, or not, of resorbable membranes. The aim of this pilot study is to histologically compare bone after an alveolar ridge augmentation using an autogenous dentin particulate graft with and without a resorbable collagen membrane. (2) Methods: this clinical trial enrolled six patients with defects requiring bone augmen-tation. Two procedures were performed in all six adult human patients in order to perform a study– control study: in Group 1, a ridge augmentation procedure with an autogenous dentin particulate graft and a resorbable collagen membrane was performed, and, in Group 2, an alveolar ridge preservation without a membrane was performed at the same time (T0). At 4 months, a biopsy of the bone tissues was performed using a 4 mm trephine bur in order to perform a histomorphometric analysis. (3) Results: The histomorphometric analysis demonstrated that Group 1 presented 45% of bone vol-ume, 38% of vital bone, and 7% of residual graft. On the contrary, membrane-free regenerative procedures demonstrated 37% of bone volume, 9% of vital bone, and 27% of non-resorbed graft. In all cases, the regenerated bone allowed the insertion of implants with a standard platform, and no early failures were recorded. (4) Conclusions: Autogenous dentin particulate grafts seem to work best when paired with a membrane
The effects of topical application of melatonin on periodontal Disease in diabetic patients
Full text linkPeriodontal disease is a chronic disease, affects the supporting tissues of the tooth. The clinical manifestation varies from gingivitis to periodontitis. Periodontal disease is caused by bacterial infection that release toxins. The imbalance between oxidants and antioxidants determines the progression of periodontal disease. Melatonin (MEL), (N-Acetyl-5-methoxytrittamine) is a hormone in the human body. Its production takes place in various organs including the retina, gastrointestinal tract, bone marrow, leukocytes, lymphocytes, skin, and principally pineal gland. Its main function is the regulation of the circadian and seasonal rhythm, body weight, reproduction, bone metabolism, and tumor growth. An important function of melatonin is the ability to reduce oxidative stress. The aim of this review is to evaluate the necessary effects on melatonin on the progression of periodontal disease and diabetes. The purpose of this review is to answer to the following questions using a PICO method (P: patient problem/population; I: intervention; C: comparison; O: outcome): (1) Can adding melatonin in diabetic and periodontal patients lead to improved periodontal health? (2) Does melatonin also affect the control of blood sugar levels in the diabetic patient? The study was conducted utilizing the main scientific databases (PubMed, MEDLINE, and WEB of SCIENCE). The time window considered for the electronic search was from March 1, 2007, to March 1, 2020. The following inclusion criterion was used: Articles in English, human studies and clinical trials. Two independent people search with the same keywords all article and select the article founding. The risk of bias in this phase is solved by an independent author that conduct the same search. We can hypothesize that melatonin may indirectly help control blood sugar levels. Further studies will be needed to evaluate a direct healing effect of melatonin on diabetes
A novel technique to close large perforation of sinus membrane
Full text linkMaxillary sinus floor elevation is generally accepted as a regenerative procedure to facilitate dental implants placement in the posterior atrophic maxilla. Although the sinus lift procedure is relatively safe, some potential problems could be occur. The most prevalent intraoperative complication is perforation of sinus membrane, which can lead to graft infection and early failure. The Aim of this work. Is to present a new technique to repair large perforation of sinus membrane. This case report. Is focused on a 10 mm perforation of sinus membrane occurred during preparation of the sinus window. The obliteration of the perforation was obtained by means of suturing sinus membrane with a resorbable material to the bone directly lateral to the osteotomy site. Sinus augmentation procedure could complete and the insertion of a graft was permitted
Vertical Dimension Control in Two Different Treatment Protocols: Invisalign First and Bite Block—A Retrospective Study
Full text linkbackground: the aim of the present study was to compare the vertical dimension changes, before and after treatment, in two groups of growing patients, one group treated with clear aligner therapy versus a group treated with quad-helix and bite-block therapy. methods: the studied sample was composed of n. 40 patients (20 females and 20 males with a mean age of 8.6 ± 1.8 years), enrolled from the department of orthodontics at policlinico of rome tor vergata. the original sample was randomly divided into two groups: group IF (invisalign first) and group BB (quad-helix and bite block). pre- (T0) and post-treatment (T1 after 12 months) lateral cephalograms were collected from all the selected patients. nine cephalometric parameters, both angular and linear, were measured and recorded for each cephalogram. results: no statistically significant changes were found between both the IF and BB groups at T0, while statistically significant changes were observed in both groups (BB and IF) between T0 and T1 (after 12 months of active therapy), p < 0.005. conclusions: both therapies were able to control the patient’s vertical condition. to date, the use of conventional appliances seems to have slightly better efficacy in controlling the vertical dimension than aligner therapy
Valutazione clinica dello stato di salute gengivale dopo l’utilizzo di un nuovo spazzolino manuale.
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