Length-weight relationships of 28 fish species caught from demersal trawl survey in the Middle Black Sea, Turkey

This study provides updated the length-weight relationships and Fulton's condition factor of 28 fish species belonging to 23 families from the Black Sea. Samples were collected along the depths between 0-100 meters by demersal trawl surveys conducted seasonally from May 2017 to September 2019. A total of 83,885 specimens were collected. The length-weight relationships and Fulton's condition factor, minimum, maximum and mean lengths, total weights, descriptive statistics, and growth type were provided for all the species. The results indicate that LWR parameters of b varied from 2.2039 to 3.737 and Fulton's condition factor varied between 0.004 and 1.18. These findings could be useful for monitoring and management of sustainable fisheries and habitat health

A comparison of injection pain with articaine with adrenaline, prilocaine with phenylpressin and lidocaine with adrenaline

Objective: The objective of the present study was to investigate the pain on injection of articaine with adrenaline, prilocaine with phenylpressin, and lidocaine with adrenaline. Study Design: The study sample was comprised of 497 consecutively seen patients received 497 maxillary buccal infiltration injections or inferior alveolar block injections of 4% articaine with 1: 200.000 adrenaline, 3% prilocaine with 1.08mcg phenylpressin, or 2% lidocaine with 1: 100.000 adrenaline. Immediately after the injection, patients were asked to rate their injection pain on a six-point scale. Results: There were no significant differences among the anesthetic solutions for injection pain. Patients usually reported mild or no injection pain for all of anesthetic administrations. Conclusion: Under the conditions of this study that lidocaine with adrenaline, articaine with adrenaline and prilocaine with phenylpressin seemed to be similar for pain on injection and they could be quite painless

Prevalence and characteristics of supernumerary teeth: A survey on 7348 people

WOS: 000218606600007PubMed: 25984466Objective: The aim of the present study was to determine the prevalence of supernumerary teeth with by evaluating a large group of adult patients in Turkey and to investigate the characteristics of supernumerary teeth with their complications and treatment options. Study Design: This descriptive and retrospective study was carried out in 7348 adult patients aged over 18 years (3212 females and 4136 males). The characteristics of the supernumerary teeth were noted and the diagnosis was made during clinical and radiographic examination with the help of panaromic, periapical, and occlusal radiography. Information on the demographic variables for each patient, including age and gender, were colleceted. Materials and Methods: All supernumerary teeth were classfied under several titles such as location, position, morphology, eruption, clinical complications, and treatment protocols. The data obtained were subjected to statistical analysis. Chi-squared test was used to determine differences in distribution of supernumerary teeth when stratified by gender. The statistical significance was established by confidence interval of 95% (P % 0.05). Results: 123 (2.14%) affected patients (69 females and 54 males) were observed with a female:male ratio of 1.28:1 (P < 0.05). One hundred and fifty-six supernumerary teeth were detected in all affected patients. Conclusion: Supernumerary teeth may be observed in adults patients with a similar frequency (2.14%) as in children and young adolescents, and clinicians should take measures and examine all patients carefully even at older ages

Retrospective analysis of nasal soft tissue profile changes with maxillary surgery

Purpose: The aim of this study was to analyze the changes in the position of the nasal and labial soft tissue profile of patients undergoing bimaxillary orthognathic surgery, with special emphasis on the effect on the nasal tip projection. Materials and Methods: The lateral cephalometric radiographs of 27 consecutive patients (16 female and 11 male patients; mean age, 22 years) who had undergone maxillary advancement and mandibular setback were studied. The pretreatment and end-of-treatment lateral cephalometric radiographs were selected. The pretreatment and end-of-treatment radiographs were superimposed on the sella-nasion plane, and the case was only included if there had been no change in sella-nasion length (ie, no growth). Analyses of Pearson correlation coefficient and stepwise linear regression tests were used to compare the cephalometric measurements at the beginning and at the end of treatment. Paired-sample t tests were also performed to analyze changes in nasolabial angle (NLA) and columella-lobular angle (CLA). Results: The correlations between vertical movement of nasal tip, A-point, and maxillary incisal tip were important. Although there was an important correlation between nasal and incisal tip, interestingly, there was no correlation between nasal tip and A-point in horizontal movement. According to stepwise linear regression analysis, the best model for horizontal movement of nasal tip was as follows: Nasal anteroposterior movement = 0.241 + 0.188 × Incisal tip anteroposterior movement + 0.153 × Incisal tip superoinferior movement. For vertical movement of nasal tip, the best model was as follows: Nasal superoinferior movement = -1.117 + 0.399 × Incisal tip superoinferior movement + 0.323 × A-point anteroposterior movement. There was no significant relation in angular measurements of NLA and CLA before and after treatment. Conclusion: The results of our study suggest that both horizontal and vertical movements of nasal tip were related to incisal tip and A-point movements; however, angular changes in CLA and NLA did not affect the nasal tip. © 2011 American Association of Oral and Maxillofacial Surgeons

ASSESSMENT OF HEAT GENERATION DURING IMPLANT INSERTION

WOS: 000341541100021PubMed: 24656407Statement of problem. Many studies have investigated the heat generated during implant preparation, but data are needed to better predict heat generation during implant insertion. Purpose. The purpose of this study was to measure the heat generated during insertion of an implant at speeds of 30, 50, and 100 rpm, and with manual insertion. Material and methods. Sixty-four uniform fresh bovine femoral cortical bone specimens were used. After the cortical bone was drilled, 3 different implant insertion speeds and the manual insertion of the implant were evaluated for 2 different implant diameters. The temperature was measured with 2 Teflon-insulated, type K thermocouples. Data were analyzed by 2way ANOVA, and the Tukey honestly significant difference test (Gc=.05). Results. The highest thermal change for 4.1-mm-diameter implants was found at a speed of 100 rpm (9.81 C 2.29 C), and the lowest thermal change was 3.69 C 0.85 C at a speed of 30 rpm. A statistically significant difference was found between 100 rpm and the other 3 insertion procedures. The highest thermal change for a 4.8-mm-diameter implant was found at a speed of 100 rpm (8.79 C 1.53 C), and the lowest thermal change was 4.48 C 0.85 C at a speed of 30 rpm. No statistical difference was observed with manual, 30 rpm, and 50 rpm; however, a statistically significant difference was found between 100 rpm and the other 3 insertion procedures. Conclusions. Manual implant insertion and at speeds of 30 rpm and 50 rpm generated lower heat compared with insertion at 100 rpm. (J Prosthet Dent 20:14;112:522-525

Clinical study on the closure of extraction wounds of partially soft tissue-impacted mandibular third molars

WOS: 000317586300008PubMed: 23115765Objective: When a mandibular third molar is partially impacted in the soft tissue, it must be determined whether the extraction wound should be left partially open or completely closed. We hypothesize that a blood clot preserving a surgical wound with easily cleanable surfaces by primary closure and drain application would postoperatively minimize dry socket and/or alveolitis development. Method and Materials: Twenty patients requiring bilateral extraction of partially soft tissue-impacted mandibular third molars in a vertical position were included in the study. The existence of dry sockets, alveolitis, pain, facial swelling, and trismus were evaluated on the second, fifth, and seventh days of the postoperative period. Results: On the second day, pain, trismus, and swelling were higher in the drained group; however, pain reduced progressively in the drained group over time. There were no cases of dry sockets or alveolitis except for a single patient on the seventh day in the drained group over the 7-day study period. On the other hand, in the secondary closure group, the number of dry sockets was 8 (40%) on the second day. The number of alveolitis was 10 (50%) on the fifth day and 4 (20%) on the seventh day. Conclusion: Closed healing by drain insertion after removal of partially soft tissue-impacted third molars produces less frequent postoperative dry sockets and/or alveolitis development than occurs with open healing of the surgical wound. In cases with a risk of alveolitis development (lack of oral hygiene, immunocompromised patients, etc), it can be avoided with the "kiddle effect" and related undesired complications by implementing closed healing with drain insertion. (Quintessence Int 2012;43:863-870