To evaluate the epidemiological aspects of adenoid cystic carcinoma (ACC) and to evaluate the different therapeutic possibilities as well as the percentage of survival. A retrospective, meta-analytic, observational study was carried out by selecting a total of 13 articles, which provided a sample size of 263 cases of patients who had been diagnosed with ACC in the minor salivary glands. ACC was found to be more common among women (56.5%) and the average age at diagnosis was 55.26 years old. The primary location of the tumor was in the palate in 57% of the cases, the predominant pattern being cribiform. The treatment of choice was therapy combined with surgery and radiotherapy in 62.7% of the subjects. The overall survival rate was 70.76% and 56.76%, at 5 and 10 years respectively. Early detection of adenoid cystic carcinoma is necessary in order to enable making an earlier prognosis and thus enable a better quality of life for the patient.

To establish whether there is a high enough risk of bleeding in patients who take oral anticoagulants, such that it would justify not using oral anticoagulants when performing a dental extraction, as well as if the reason for and anatomical location of the extraction increases such risk. We performed a bibliographic search in order to carry out a meta-analytic study using descriptive statistics. We compiled a sample of 1194 patients from the articles selected. Of these patients, a total of 2392 simple, serial surgical extractions were performed; none of the patients interrupted their anticoagulant treatment with warfarin sodium. Of the sample, 83 patients presented a certain degree of bleeding; in 77 of such cases, the bleeding was controlled with local hemostasis, whereas 6 patients required their dose of oral anticoagulants to be adjusted. There was a higher incidence of bleeding in patients presenting a periodontal pathology, compared to deep caries and pericoronitis. Patients being treated with oral anticoagulants represent a risk that we should be aware of, but local hemostasis has proven to be effective when performing extractions, provided that the INR value is less than 4. There is an increased incidence of bleeding in patients with periodontal problems, due to the greater presence of inflammation in the soft tissues. If the extraction is performed in the maxilla, the incidence of hemorrhagic complications is slightly higher than in the mandible, although this difference is considered to be insignificant.

Since Brånemark first started developing its implant system, there has been a continuous and significant evolution in oral implantology through experimental and clinical research, and many of the concepts that were once considered valid have now become the subject of debate. The insertion of the implant immediately after extraction of the tooth to be substituted has now become the implant treatment of choice and is associated with preserving the bone structure and the gingival architecture, as well as with reducing the treatment time, which ultimately benefits the patient. To evaluate the success rate of the immediate post-extraction implants (IPI) subject to immediate loading. A meta-analytic study was carried out on 659 immediate post-extraction implants obtained from a bibliographic review of 25 articles published within the last 9 years. We obtained a sample of 322 patients who had been treated with a total of 659 implants placed immediately following extraction. The mean age of the patients was 51 years old. A total of 441 implants were inserted in the maxilla, 152 in the mandible and 64 were placed in an unspecified location. The survival rate ranged between 85% and 100%. Immediate post-extraction implant treatment is an implant alternative with a survival rate similar to that of the conventional technique for implant placement and enables preserving both the bone structure and gingival architecture, as well as providing immediate functional loading, thus improving the quality of the treatment as far as the patient is concerned.

Implant rehabilitation of posterior mandibular defects is frequently associated to a horizontal bone loss. There exist several regenerative techniques to supply this bone deficiency, one of which is the Periosteal Pocket Flap Technique (PPF) proposed by Steigmann et al. to treat small horizontal bone defects. The present study proposes a modification of this technique based on the concurrent use of PPF with the use of xenogeneic and autologous bone and Plasma Rich in Growth Factors (PRGF). The aim of this study is to evaluate clinical and radiographic outcomes of the PPF with the use of xenogeneic and autologous bone and PRGF in comparison with conventional Guided Bone Regeneration (GBR) procedures. Nine patients were enroled in the study (7 women and 2 men, mean age: 53 ± 2.74 years) and allocated to PPF or GBR. In both groups implant placement was performed simultaneously to bone regeneration. Preoperative CBCT scans were performed for each patient. Surgical time and postoperative pain were recorded, as well as tissue healing. Moreover, horizontal bone gain (mm), graft surface area (mm2) and graft volume (mm3) were evaluated. Nine surgeries were performed: 6 PPF and 3 GBR. Regarding clinical outcomes, operative time was significative greater in GBR group than in PPF group (51.67 ± 3.51 min vs. 37 ± 5.69 min; p = 0.008). Postoperative pain was higher in GBR compared to PPF (p = 0.011). Regarding radiographical results, there were not significant differences in horizontal bone gain (PPF: 9.43 ± 1.8 mm; GBR: 9.28 ± 0.42 mm), surface area (PPF: 693.33 ± 118.73 mm²; GBR: 655.61 ± 102.43 mm²), and volume (PPF: 394.97 ± 178.72 mm³; GBR: 261.66 ± 118 mm³) between groups. This prospective study demonstrates that the combination of autograft/xenograft and PRGF in PPF technique is a simpler, cheaper, and faster technique than GBR technique for achieving moderate lateral bone augmentation in implant treatment. Future randomised clinical studies are needed to confirm the results.