Unc 15 probe

Manufactured by Hu-Friedy

Sourced in United States

The UNC-15 probe is a dental instrument designed for periodontal probing. It features a slim, 15mm long tip with a rounded end, allowing for precise measurements of pocket depth and gingival evaluation.

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28 protocols using unc 15 probe

Posterior Maxilla/Mandible Implant Placement

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The inclusion criteria were:

Age ≥ 18 years old.

Two adjacent missing teeth in the posterior maxilla or mandible with a reduced bone quantity (vertical distance between bone crest to the maxillary sinus or inferior alveolar nerve ≤8 mm).

Adequate bone availability to insert 2 implants with a 5.0‐ or 5.5‐mm diameter, and 5.5–6.5 mm long.

Full‐mouth plaque Index (FMPI) and Full‐mouth bleeding index (FMBI) < 10% assessed in six points for each tooth using a periodontal UNC 15 probe (Hu‐Friedy, Chicago, IL, USA).

Patients must be willing to participate and to attend the planned follow‐up visits

Exclusion criteria were:

Medical condition contraindicating implant surgery.

Smoker of more than 10 cigarettes per day, cigar equivalents. or tobacco chewers.

Local inflammation (included untreated periodontitis).

Post‐extraction sites with less than 6 months of healing.

Bruxism.

Menini M., Pesce P., Delucchi F., Ambrogio G., Canepa C., Carossa M, & Pera F. (2022). One‐stage versus two‐stage technique using two splinted extra‐short implants: A multicentric split‐mouth study with a one‐year follow‐up. Clinical Implant Dentistry and Related Research, 24(5), 602-610.

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Comprehensive Dental Evaluation before Tooth Extraction

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At baseline (before tooth extraction), the following data will be collected:

Full-mouth peri-apical films,

CBCT images (CBCT 1): CBCT images will be taken by CBCT machines (NewTom VG; Aperio Services, Italy) at a resolution of 0.125 mm with field of view size 10 × 10 cm (exposure time: 3.6 s, 110 kV, 5 mA). It will be used for assessing anatomical conditions, including the degree of bone loss and the position of maxillary sinus/mandibular canal.

Stereolithography (STL) files (STL 1): intraoral scans will be taken using a TRIOS intraoral scanner (3Shape TRIOS Color, TRC, 3Shape, Denmark) to obtain a digital impression of the target area and generate an STL file, which include the selected tooth and relevant quadrant. Soft tissues contained in this digital impression will extend over the mucogingival junction.

Periodontal parameters: the periodontal conditions of the ailing tooth and adjacent teeth will be assessed by measuring probing depth (PD), gingival recession (GR) and bleeding index (BI). The width of keratinized tissue (WKT) will be measured at mid-buccal aspect from the mucogingival junction to the gingival margin of the teeth. Data will be round down to the nearest 0.5 mm, and they will be collected using an UNC-15 probe (Hu-Friedy, Chicago, IL, USA).

Zhang H., Wei Y., Xu T., Zhen M., Wang C., Han Z., Hu W, & Chung K.H. (2022). Assessment of soft and hard tissue characteristics of ridge preservation at molar extraction sites with severe periodontitis: a randomized controlled trial. BMC Oral Health, 22, 511.

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Evaluating Oral Hygiene in Surgical Patients

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Upon screening and selecting the patients for study the following clinical examinations were done pre- and post-operatively at 1^st and 3^rd months. Plaque index (PI)[32 (link)] was recorded at baseline, 1^st, and 3^rd month to monitor the oral hygiene and motivation of the patients. Sulcus bleeding index (SBI),[33 (link)] PPD, and clinical attachment level (CAL) (standardized using an acrylic stent and measured using a UNC-15 probe, Hu-friedy, USA) were recorded at baseline and repeated after 3 months.

Sreedhar A., Sarkar I., Rajan P., Pai J., Malagi S., Kamath V, & Barmappa R. (2015). Comparative evaluation of the efficacy of curcumin gel with and without photo activation as an adjunct to scaling and root planing in the treatment of chronic periodontitis: A split mouth clinical and microbiological study. Journal of Natural Science, Biology, and Medicine, 6(Suppl 1), S102-S109.

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Clinical Outcomes of Gingival Recession Treatment

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Clinical parameters were recorded immediately preoperatively (baseline) and six months postoperatively (Tables 1 and 2). Evaluated parameters were plaque score; BOP; recession depth (RD; cementoenamel junction (CEJ) to gingival margin (GM)); recession width (RW) at the CEJ level; GR classification [23 ]; probing depth (PD); clinical attachment level (CAL); and keratinized tissue width (KTW; GM to mucogingival junction (MGJ)). Plaque and BOP were recorded at 6 sites per tooth on all teeth present. The remaining parameters were measured on the midbuccal aspect of the study tooth and recorded to the nearest 0.5 mm. Parameters were measured using a periodontal probe (UNC-15 probe, Hu-Friedy, Chicago, IL, USA) by the same operator (JBCN) who performed the procedures.
Root coverage (RC, in percentage) was calculated by the following formula:

\begin{matrix} (\frac{baseline  RD - 6 -months  RD}{baseline  RD}) \times 100. \end{matrix}

César Neto J.B., Cavalcanti M.C., Sekiguchi R.T., Pannuti C.M., Romito G.A, & Tatakis D.N. (2019). Root Coverage for Single Deep Gingival Recessions: Outcomes Based on a Decision-Making Algorithm. International Journal of Dentistry, 2019, 1830765.

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Measuring Periodontal Pocket Depth

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This was assessed using UNC-15 probe (Hu-friedy) from the cementoenamel junction to the base of the pocket at 6 sites (mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual).

Naik V.K., Balasundaram A., Appukuttan D., Nainar D.A., Milward M.R., Victor D.J, & Junaid M. (2018). Preprocedural Anxiety and Pain Perception Following Root Surface Debridement in Chronic Periodontitis Patients. Journal of Natural Science, Biology, and Medicine, 9(1), 82-89.

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Gingival Pocket Depth Measurement

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This was assessed using UNC-15 probe (Hu-friedy, USA) from the gingival margin to the base of the pocket at 6 sites (mesiobuccal, midbuccal, distobuccal, mesiolingual, mid lingual, and distolingual).

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Standardized Clinical Measurements for Gingival Recession

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One calibrated examiner collected the following data at baseline, 3 months and 6 months post-operatively: Gingival recession (REC), probing pocket depth (PPD), CAL and width of keratinized gingiva (WKG) were measured using a computerized constant pressure probe i.e., Florida Probe (Florida Probe Corporation, Gaineswille, FL, USA) with a constant force of 15 g (pressure-154 N/cm²), tip diameter of 0.40 mm, precision of 0.2 mm and a probe length of 11 mm. The CEJ was used as a fixed reference point and where CEJ was not visible the lower border of the groove on the acrylic stent, which covered the experimental tooth was used as a reference point. One examiner performed all the surgeries Vidya Baliga (Vidya Baliga) and the clinical measurements were carried out by another examiner Manohar L Bhongade (Manohar L Bhongade). The patient was unaware of the type of treatment he would receive. The mean intra-examiner standard deviation of differences in repeated PD measurements and CAL measurements were obtained using single passes of measurements with a UNC- 15 probe (Hu-Friedy, Chicago, IL, USA) (correlation coefficients between duplicate measurements; r = 0.95).

Pendor S., Baliga V., Bhongade M.L., Turakia V, & Shori T. (2014). A comparison between connective tissue grafts combined with either double pedicle grafts or coronally positioned pedicle grafts: A clinical study. Journal of Indian Society of Periodontology, 18(3), 326-330.

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Oral Health Evaluation in Dietary Intervention

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All the clinical parameters were measured by a dentist masked to the intervention (S.N.). The clinical parameters assessed were GI (by Loe and Silness),[14 (link)] PI (by Silness and Loe),[15 (link)] BOP, and PD. All the measurements were taken by using a UNC 15 probe (Hufriedy). After initial recruitment, subjects were advised to maintain the same oral hygiene behavior throughout the study duration; a soft bristle toothbrush and toothpaste were distributed to all subjects, and they were instructed to not indulge in the use of interdental aids. Baseline measurements were taken in the first week and this week was considered as transition time for the patients to adapt the new dietary behavior in the test group. The patients were instructed to visit hospital on a weekly basis and GI, PI, and diet dairies were examined at each appointment. Patients in the control group were examined by similar protocol, except no dietary instructions were given to them. At the end of the four weeks, all the clinical parameters were again evaluated.
All the patients were asked questions related to SES, as per the modified Kuppaswamy scale.[16 (link)]
Primary clinical outcomes were bleeding on probing and probing depth. The secondary clinical outcomes were GI, clinical attachment loss, and PI.

Rajaram S.S., Nisha S., Ali N.M., Shashikumar P., Karmakar S, & Pandey V. (2021). Influence of a Low-Carbohydrate and Rich in Omega-3 Fatty Acids, Ascorbic Acid, Antioxidants, and Fiber Diet on Clinical Outcomes in Patients with Chronic Gingivitis: A Randomized Controlled Trial. Journal of International Society of Preventive & Community Dentistry, 11(1), 58-67.

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Statistical Analysis of Periodontal Parameters

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Statistical analysis was performed using statistical software (SPSS version 15.0, SPSS, Chicago, USA). Power analysis indicated more than 80% power. Results on continuous measurements were presented as mean ± standard deviation and results on categorical measurements were presented in number (%). Significance was assessed at 5% level of significance. Comparisons of the PI and PBI at baseline, 3 months and 6 months were made by Students paired t-test. If P > 0.05, the difference observed was considered nonsignificant and if <0.05, was considered statistically significant for all analyses. Repeated measures-ANOVA was used to make comparisons of various parameters used, from baseline to 6 months. Comparisons between multiple groups were done by One-way ANOVA, followed by nonparametric multiple comparison post-hoc Tukey's test. The mean intraexaminer standard deviation of differences in repeated PD measurements and CAL measurements were obtained using single passes of measurements with a UNC-15 probe (Hu-Friedy, Chicago, IL, USA) (correlation coefficients between duplicate measurements; r = 0.95).

Thakare P., Baliga V, & Bhongade M.L. (2015). Comparative evaluation of the effectiveness of acellular dermal matrix allograft and subepithelial connective tissue to coronally advanced flap alone in the treatment of multiple gingival recessions: A clinical study. Journal of Indian Society of Periodontology, 19(5), 537-544.

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Comprehensive Oral Health Examination Protocol

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After systemic examination and investigations, intraoral examination including Gingival Index²⁵, Plaque Index (PI)²⁵, Oral Hygiene Index Simplified (OHI-S)^{26 (link)}, Gingival Bleeding Index (GBI)²⁷ and full-mouth charting including Probing Depth (PD) and Clinical Attachment Level (CAL) were conducted for all groups. A probing depth (PD) is a dimension of the depth of a gingival sulcus or periodontal pocket. It was estimated by measuring the distance from the gingival margin to the base of the sulcus with a standardized periodontal probe (UNC-15 probe Hu-Friedy, Chicago, IL, USA). CAL is the distance from the cemento-enamel junction to the base of the periodontal pocket. A single calibrated examiner (A.J.) assessed all the clinical parameters, including full mouth probing depth and CAL. The results were reproducible when the measurements were repeated.

Jain A., Gupta S., Bhansali A., Gupta M., Jain A., Bhaskar N, & Kaur R.K. (2020). Impact of concurrent diabetes on periodontal health in patients with acromegaly. Scientific Reports, 10, 19170.

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