(1) Background: Metalloproteinase-8 (MMP-8) and metalloproteinase-9 (MMP-9) are members of a family of proteases of major importance during orthodontic tooth movement. Their levels increase during orthodontic therapy and in periodontally affected tissues. Orthodontic fixed appliances retain dental plaque and can cause gingival inflammation. When gingival inflammation is present, the forces produced during orthodontic tooth movement can aggravate tissue reaction and cause the destruction of supportive periodontal tissue. This study aimed to identify biomarkers that facilitate the assessment of periodontal status during orthodontic treatment. (2) Methods: Our study was conducted on 111 patients who were about to receive fixed orthodontic treatment. We determined the salivary levels of MMP-8 and MMP-9 and bleeding on probing (BOP) before applying the orthodontic fixed appliance (T1), one week after appliance placement (T2), and during orthodontic treatment, one month after non-surgical periodontal treatment (T3). (3) Results: Patients undergoing orthodontic treatment show a significant increase in BOP, MMP-8, and MMP-9 levels one week after orthodontic appliance placement (T2) and a decrease in these parameters one month after periodontal treatment (T3). Statistically significant correlations were found between MMP-8 levels and BOP values at T1, T2, and T3. (4) Conclusion: In our study patients undergoing orthodontic treatment show a significant increase in BOP, MMP-8, and MMP-9 levels one week after orthodontic appliance placement and a decrease in these parameters one month after periodontal treatment. Strong positive statistically significant correlations were found between MMP-8 levels and BOP and medium positive statistically significant correlations between MMP-9 and BOP values before and after orthodontic treatment and periodontal treatment. MMP-8, MMP-9, and BOP could be used to assess the periodontal status of orthodontic patients.

The aim of our study was to correlate systemic bone loss by evaluating human Dickkopf-related protein 1 (Dkk-1) biomarker compared to horizontal bone loss as well as the presence and size of periapical lesions assessed by dental X-ray (ortopantomography—OPT) and cone beam computed tomography (CBCT) in patients with cancer in the ears, nose and throat (ENT) region vs. healthy controls. The study included 63 subjects divided into a study group of 33 cancer patients with ENT cancer (larynx/oropharynx/sinuses) and a control group of 30 healthy individuals. Blood samples were collected from both groups to assess Dkk-1 level using a sandwich enzyme immunoassay. The dental radiological examination consisted of a panoramic X-ray and a CBCT in order to appraise the horizontal bone loss, the presence and size of the periapical lesions in 2D vs. 3D images. The panoramic X-ray showed that in the control group, the maximum bone loss reached 13.2 mm, with an average of 4.930 ± 3.258 mm, while in the study group, the maximum horizontal bone loss was 11.3 mm, with an average of 5.191 ± 2.109 mm. The CBCT 3D investigation, when compared to the OPT, showed increased values for horizontal bone loss, both in the control group and in the study group; in the control group, the maximum bone loss reached 14.10 mm, with an average of 5.736 ± 3.471 mm, and in the study group, the maximum value was 12.40 mm, and the average was again slightly higher (6.152 ± 2.519 mm). The mean value for Dkk-1 in cancer patients was 1.209 ± 0.110 ng/mL, significantly lower than the value observed in healthy patients (1.712 ± 0.100 ng/mL). CBCT revealed higher values for the investigated parameters when compared to panoramic X-rays. Taking into account the preliminary nature of our study, we observed a significant correlation between the level of bone loss recorded by the Dkk-1 biomarker and radiological dental examination in patients with ENT cancer when compared to the control group.

Techniques of balneo-physio-kinetotherapy and complex oral rehabilitation are general measures approach, which are addressed to all patients for maintaining the homeostasis of the whole body and also of the cephalic extremity, as well as specific measures, targeted in our case at the level of the stomatognathic system. These kind of appoach treatments are in accordance with an individualized therapeutical scheme and gradually complying with the principles and concepts of complex oral rehabilitation. Infrared radiation and masotheraphy is a form of balneo-physiotheraphy medicine in adjuvant and incresed results of benefits of clasic treatment in temporo-mandibular disorders. The association of these treatments, is favorited above monotherapy.

The purpose of the study is to assess the apical sealing ability of the endodontic space using two types of canal filling techniques: vertical compaction of warm gutta-percha and AhPlus sealer compared with Resilon and RealSeal SE. Two sets of extracted human teeth were prepared with rotary instruments, each 20 teeth being obturated by the two techniques: the classical and the adhesive root canal filling. The apical leakage of the root canal filling made with Resilon and RealSeal SE was higher than the one with gutta-percha and AhPlus. The difference was statistically significant.

The ideal biomaterial used in endodontics in the process of sealing the radicular canals should possess a group of qualities for a predictable outcome: biocompatibility, initiation of ontogenesis and cementogenesis, ease of handling, sufficient manipulation time, and convenient price. For a perfect sealing, the root canal treatment can be followed by prosthetic restoration. This study of biocompatibility aims to determine the quantification of the local reaction following the implantation of three biomaterials in the rabbit subcutaneous connective tissue. The used biomaterials with particular reparative properties are: MTA (Mineral Trioxide Aggregate, Dentsply, Tulsa Dental, Johnson City, TN, USA), Sealapex (Kerr, Switzerland), and DiaRoot BioAggregate (Innovative BioCaramix Inc, Vancouver, BC, Canada). The first two biomaterials (MTA, Sealapex) are already being used in endodontic treatments, and the latter was newly introduced during the concrete development of the study. This is an experimental study focused on qualitative and quantitative analysis based on histopathological examination and underlined by the positive result of the study undertaken of the applicability of oral rehabilitation treatments, increasing patients’ quality of life by a significant proportion of 95%, and generating optimal functionality of the stomatognathic system with prosthetic devices as well as accomplishing the objectives of homeostasis.

The aim of this study was to assess the morphological and chemical composition changes induced by the chronic intake of sodium fluoride (NaF) and Amoxicillin in mice enamel. 35 C57BL/6 adult male mice, were randomly divided into a control and 4 treatment groups (n = 7). After acclimatization, the experimental groups were simultaneously treated with 25 ppm (group 2 and 3) and 50ppm (group 4 and 5) of NaF, and 50mg/kg BW (group 2 and 4) and 100 mg/kg BW (group 3 and 5) of Amoxicillin as Amoxicillin/clavulanic acid (AMC). NaF was supplied through drinking water without restricting access, and AMC administered through subcutaneous injection, once per day, for 60 days. After harvesting, lower incisors� enamel was subjected to a scanning electron microscope (SEM) and to an energy dispersive X-ray analysis (EDX). In the treatment groups, SEM and EDX analysis in treatment groups showed an increasing trend of weight percentage (wt%) for C, N, O, F, Na and C/O, F/Fe ratio, and also a decreasing trend of wt% for P, Cl, Ca, Fe and Ca/P ratio. Morphological changes ranged from fissures and short grooves with pits-like appearance, in group 2 sometimes associated with limited demineralized areas looking like irregular scratches, up to demineralized areas extended in the outer enamel, which in group 5 gives the enamel the corroded look. The severity of the morphological changes in the mice enamel varied with the supplied dose of NaF and AMC, and had a uniform pattern in each experimental group. SEM analysis revealed a hypoplasia on the outer enamel and EDX analysis showed a hypomineralisation at the level of the outer enamel.

Diseases in the maxillofacial sphere and especially the dysfunctional syndrome of the stomatognathic system have many connections and interferences with the psychiatric pathology and why not last, but not least the appearance and aesthetics that have an impact on social life and success. On the other hand, there has been a significant increase in the use of antipsychotics in recent decades. The negative impact on oral health has also increased. The ability to diagnose mental illness is essential due to the social stigma associated with these disorders and a correct differential diagnose as well. This article describes the oro-dental rehabilitation of one case, psychiatrically treated, with mandibular and maxilla missing teeth and dental destruction and prosthetic damage, temporomandibular disorders pathology due to the disbalanced occlusion and depression and anxiety, with specific medication, fixed and removable hybrid prosthesis and intra oral complex rehabilitation.

Xerostomia is a common complication post-radiotherapy in patients with oral cancer. The acute and long-term side effects can considerably reduce the patient’s quality of life. The aim of our study was to perform analysis of salivary flow and pH in patients after radiotherapy. Methodology: Clinical and laboratory evaluations were conducted in the 2014–2019 period; out of a total 58 subjects aged between 45 and 84, 28 individuals with oral cancer were selected from St. Spiridon Hospital, Clinic of Maxillo-facial Surgery and Oncology Hospital, Iasi post-radiotherapy. Results: Significant downsized mean values of the hydrogen ion concentration (pH) in saliva (p < 0.001) were recorded in patients after radiotherapy, pH value = 4.580 (±1.051). The mean value of resting salivary flow (MRSF) was significantly lower for the group of patients with radiotherapy (MRSF) = 0.145 mL/min. In 89.29% of cases (25 post-radiotherapy cases), in order to perform oral complex rehabilitation treatment, several endodontic and periodontal treatments were performed. A total of 78.57% of the cases received complex oral rehabilitation as mobile or hybrid prostheses or fixed solutions. Conclusion: Understanding post-radiotherapy salivary biochemic modifications in patients with oral cancer could be of critical importance, in view of related oral disorder prevention.