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Objectives: To validate the reproducibility and inter/intra‐observer variability of the Pink Esthetic Score/White Esthetic Score (PES/WES) of single tooth‐supported prostheses in the maxillary esthetic zone (13–23). Materials and Methods: Forty‐five patients were randomly assigned to one of the three treatment options (15 patients per group) receiving each one a different crown type: Porcelain fused to metal (PFM), monolithic zirconia, and lithium disilicate. Eight observers from each of four different specialties (Prosthodontists, Orthodontists, Periodontists, and Oral Surgeons) were recruited and assessed twice and four weeks apart (i.e., T1 and T2) 45 photographs of the single tooth‐supported prosthesis using PES/WES and compared them with contralateral teeth. Results: According to the ANOVA and post hoc tests, the zirconia crown type obtained the highest mean score by all observers, with a mean value of 16.70 ± 2.94. The prosthodontists and oral surgeons assigned the lowest mean score to PFM crowns, 13.03 ± 3.47 and 13.80 ± 3.17, respectively. Notably, the prosthodontists awarded the highest scores, specifically 17.50 ± 2.81 for the zirconia crowns. Intraobserver agreement was calculated utilizing the paired t‐test. Pairwise comparisons between observers of different specialties revealed significant intraobserver agreement. Interclass correlation coefficient (ICC) scores were statistically significant among four specialties. No difference was detected concerning the interobserver agreement. Conclusions: The PES/WES index remains consistent across various observers from different specializations, yielding uniform results in the overall esthetic evaluation. Consequently, in light of the presented preliminary positive results, its use might also be considered for the esthetic assessment of single‐tooth‐supported prostheses. Clinical Significance: The PES/WES index may be employed clinically to evaluate single tooth‐supported prostheses as it emerged as a reproducible esthetic scoring system. [ABSTRACT FROM AUTHOR]

Background: Successful endodontic treatment needs accurate determination of working length (WL). Electronic apex locators (EALs) were presented as an alternative to radiographic methods; and since then, they have evolved and gained popularity in the determination of WL. However, there is insufficient evidence on the post-operative pain, adequacy, and accuracy of EALs in determining WL. Objective: The systematic review and meta-analysis aims to gather evidence regarding the effectiveness of EALs for WL determination when compared to different imaging techniques along with postoperative pain associated with WL determination, the number of radiographs taken during the procedure, the time taken, and the adverse effects. Methods: For the review, clinical studies with cross-over and parallel-arm randomized controlled trials (RCTs) were searched in seven electronic databases, followed by cross-referencing of the selected studies and related research synthesis. Risk of bias (RoB) assessment was carried out with Cochrane's RoB tool and a random-effects model was used. The meta-analysis was performed with the RevMan software 5.4.1. Results: Eleven eligible RCTs were incorporated into the review and eight RCTs into the meta-analysis, of which five had high RoB and the remaining six had unclear RoB. Following meta-analysis, no significant difference in postoperative pain was found among the EAL and radiograph groups (SMD 0.00, CI.29 to.28, 354 participants; P value = 0.98). Radiograph group showed better WL accuracy (SMD 0.55, CI.11 to.99, 254 participants; P value = 0.02), while the EAL group had 10% better WL adequacy (RR 1.10, CI 1.03–1.18, 573 participants; P value = 0.006). Conclusion: We found very low-certainty evidence to support the efficacy of different types of EAL compared to radiography for the outcomes tested. We were unable to reach any conclusions about the superiority of any type of EAL. Well-planned RCTs need to be conducted by standardizing the outcomes and outcome measurement methods. [ABSTRACT FROM AUTHOR]

The study aimed to investigate the effect of utilization of treatment for insomnia symptoms on the prevalence of major depressive disorder among older adults in India. We used the data from the Longitudinal Ageing Study in India (LASI), 2017–18. The sample included 10,911 older individuals who reported insomnia symptoms. The propensity score matching (PSM) approach was used to compare the depressive disorder among those who received vs. not received treatment. Only 5.7% of older adults reporting insomnia symptoms received treatment. On average, prevalence of depressive disorder among men and women who received treatment for insomnia symptoms was lesser by 0.79 and 0.33 points, respectively, than those who did not receive treatment. In the matched sample, treatment for insomnia symptoms was significantly associated with lesser prevalence of depression for both older men (β= −0.68, p <.001) and older women (β= −0.62, p <.001). The current findings suggest that treatment for insomnia symptoms can reduce the risk of depressive disorder among older adults and the effects are higher among older men than women. [ABSTRACT FROM AUTHOR]

Background: Several observational studies have reported the prevalence of cerebral microbleeds (CMBs) and their risk factors in an elderly population. Any information in this regard is currently lacking from India. Aim of this study was to estimate the prevalence, risk factors of CMBs, and association with cognition in an Indian urban population aged 50 years and above. Methods: Household surveys were conducted as part of ongoing Longitudinal Cognition and Aging Research on Population of the National Capital Region (LoCARPoN) study in areas of urban Delhi. Magnetic resonance imaging of the brain was performed in 2599 participants. Using standard neuropsychological battery, mean Z-scores for each domain (memory, executive, information) were derived. Binary and stepwise logistic regression models were used to determine associated risk factors for the presence of CMB and its association with cognitive domains. Results: The prevalence of CMBs was 14.42% (95% confidence interval [CI]: 13.06-15.73). Of these, 203 (7.81%) participants had single CMBs and 172 (6.61%) had multiple microbleeds (≥2). Higher prevalence was observed in older age (6070 years: odds ratio [OR]: 1.25 [95% CI: 0.93-1.67]; 70-80 years: OR: 2.05 [95% CI: 1.48-2.84]; ≥80 years: OR: 3.27 [95% CI: 1.97-5.44]) compared to individuals in the age group 50-60 years. History of stroke (OR: 2.97 [95% CI: 1.56-5.66]), hypertension (OR: 1.36 [95% CI: 1.05-1.75]), and smoking (OR: 1.43 [95% CI: 1.11-1.85]) was associated with at least one CMB. Multiple CMBs were associated with worse scores in memory and executive domains. Conclusion: Older age, hypertension, history of stroke, and history of smoking emerged as important risk factors for the presence of multiple CMBs. Follow-up study is required to determine implications of CMBs. [ABSTRACT FROM AUTHOR]

Background and Objective: The most frequently seen intra-oral soft tissue is the gingiva. Most often, it is seen as coral-pink tissue that surrounds the neck of the teeth. Gingiva that encircles the tooth necks and covers the alveolar processes of the jaws is an intra-oral tissue that exhibits biomimetic features. The wide range of colors of the gingiva depends on the configuration of gingival vascularity, the degree of epithelial cornification, level of melanogenesis, and the depth of epithelialization. However, the color of the gingiva varies depending on the degree of melanin pigmentation. The current study aimed to identify the different distribution patterns of gingival color and determine the correlation between skin color, gender, and geographical area of origin. Materials and methods: A total of 839 subjects were involved in the study where the gingival color and skin tone were measured using the Dummett-Gupta Oral pigmentation Index (DOPI) combined with VITA VMK MASTER and skin shade method developed by Revlon (USA) and L'Oreal (France) for makeup foundation shades. One investigator was calibrated for the examination of the colors after being tested for normal color vision and color aptitude using the line test. Results: A significant association was found between skin color and gingival pigmentation (χ2 value (6) = 114.48; P = 0.001). It was also found that females (67.1%) significantly had darker gingiva than males (58.3%). The study statistics display that location of the individual was also statistically associated with melanin pigmentation of the gingiva (χ2 value (57) = 559.33; P = 0.001). Conclusion: The study concluded that gender, skin color, and individual location are significantly associated with gingival melanin pigmentation. [ABSTRACT FROM AUTHOR]

Introduction: COVID-19 pandemic resulted in a national lockdown and physical contact was avoided that substantially changed people's lives. The overall impact of lockdown during COVID-19 was negative on the general & mental health of adolescents. During the COVID-19 pandemic, there is a 25% massive increase in the global prevalence of anxiety and depression. Aims & Objectives: To assess anxiety & depression and their association with socio-demographic factors during the COVID-19 pandemic among school-going adolescents. Methodology: Using two simple random sampling, a cross-sectional study was conducted among 690 school-age adolescents (14 to 19 years) in four Nagar Palikas of the district of Dehradun. The questionnaire includes sociodemographic section, GAD-7, PHQ-2, Modified version of CoPaQ and coping strategies. Result: In study it's been found that more than half of the participants were facing symptoms of anxiety and 58.7% of participants had a major depressive disorder likely. 78% participants used phone and internet f/b watching TV (73.8%) and sleeping (68.1%). Conclusion: In order to combat adolescents' mental illness, we advise the creation of support groups at the family and school levels as well as prompt intervention through the revision of current strategies or formulation of new legislation [ABSTRACT FROM AUTHOR]

Mastectomy serves as the main surgical treatment for both invasive and in situ breast carcinoma and large phyllodes tumors. It is associated with skin necrosis, seroma, and surgical site infection in up to 30% of patients. In the present trial, we compared the complications in patients undergoing skin flap elevation by one of the 4 techniques: thick skin flap raised by scalpel(group1), thin skin flap raised with scalpel (group 2), thick skin flap raised with diathermy (group 3), and thin skin flap raised with diathermy (group 4). A randomized trial with superiority hypothesis and 2 × 2 factorial design was conducted at All India Institute of Medical Sciences New Delhi. Mastectomy skin flap necrosis (MSN) was recorded as the main outcome of interest. MSN was noted in 2.5% in group1, 10% in group 2, 7.5% in group 3, and 30% in group 4. MSN was observed in 5% cases with thick flap compared to 20% cases with a thin skin flap (p = 0.007). Raising the flap with scalpel was associated with MSN in 6.25% compared to 18.75% in the diathermy group (p = 0.029). We conclude that raising a thick flap with scalpel is associated with lowest risk of skin flap necrosis. Trial Registration: Clinical Trial Registry- India CTRI/2014/09/004978 [ABSTRACT FROM AUTHOR]

Objective: To assess the efficacy and safety of fixed-dose combinations (FDC) of triple-drug dapagliflozin, sitagliptin, and metformin (DSM) compared with FDC of two-drug sitagliptin and metformin (SM), in Indian adult patients with type 2 diabetes (T2D). Methods: A multicentric, randomized, double-blind, active-controlled, Phase 3 study (CTRI/2021/10/037461) was conducted on 274 Indian adult patients with T2D. Patients were randomized (1:1) to receive either an FDC of triple-drug (n = 137) dapagliflozin propanediol 10 mg, sitagliptin phosphate 100 mg, and metformin hydrochloride 1000 mg extended-release (DSM) or FDC of two-drug (n = 137) sitagliptin phosphate 100 mg and metformin hydrochloride 1000 mg sustained-release (SM), for 16 weeks. The primary endpoint was a change in HbA1c, while the secondary endpoints were changes in fasting plasma glucose (FPG), postprandial glucose (PPG), body weight, and safety. Results: Both DSM and SM FDCs reduced HbA1c significantly (-1.45% and -1.00%, respectively, both p < 0.0001), however, HbA1c lowering was superior with DSM (∆ -0.45%; p = 0.0005) compared to SM, at week 16. Similarly, both DSM and SM FDCs reduced FPG and PPG significantly, however, FPG (∆ -12.4 mg/dl; p = 0.003) and PPG reduction (∆ -18.45 mg/dl; p = 0.01) were significantly superior to DSM compared to SM, respectively. No significant reduction in body weight was observed between the two arms. Both FDCs were well tolerated. Conclusion: FDC of DSM was superior to SM in reducing HbA1c, FPG, and PPG in Indian adults with T2D. Both triple and dual FDCs had optimal safety profiles. [ABSTRACT FROM AUTHOR]

Simple Summary: Prostate Cancer represents a significant health risk for men, especially African American men, despite the availability of PSA testing. Although PSA testing is the current gold-standard test for identifying at-risk men, an increased PSA level may arise from Benign Prostatic Hyperplasia instead of Prostate Cancer. For men with BPH, PSA testing may lead them to undergo unnecessary biopsies. As an alternative to PSA, we have previously described a Filamin-A and prostate volume based biomarker test with superior performance. To simplify this test, we removed the requirement of prostate volume measurement. Herein, we present results of this updated test utilizing Filamin-A alone in Caucasian and African American men. Filamin-A demonstrates superior predictive power compared to PSA in both patient populations. By reliably separating benign conditions from aggressive prostate cancer, this test would reduce the health care burden resulting from unnecessary prostate biopsies. Prostate cancer represents a significant health risk to aging men, in which diagnostic challenges to the identification of aggressive cancers remain unmet. Prostate cancer screening is driven by the prostate-specific antigen (PSA); however, in men with benign prostatic hyperplasia (BPH) due to an enlarged prostate and elevated PSA, PSA's screening utility is diminished, resulting in many unnecessary biopsies. To address this issue, we previously identified a cleaved fragment of Filamin A (FLNA) protein (as measured with IP-MRM mass spectrometry assessment as a prognostic biomarker for stratifying BPH from prostate cancer and subsequently evaluated its expanded utility in Caucasian (CA) and African American (AA) men. All men had a negative digital rectal examination (DRE) and PSA between 4 and 10 ng/mL and underwent prostate biopsy. In AA men, FLNA serum levels exhibited diagnostic utility for stratifying BPH from patients with aggressive prostate cancer (0.71 AUC and 12.2 OR in 48 men with BPH and 60 men with PCa) and outperformed PSA (0.50 AUC, 2.2 OR). In CA men, FLNA serum levels also exhibited diagnostic utility for stratifying BPH from patients with aggressive prostate cancer (0.74 AUC and 19.4 OR in 191 men with BPH and 109 men with PCa) and outperformed PSA (0.46 AUC, 0.32 OR). Herein, we established FLNA alone as a serum biomarker for stratifying men with BPH vs. those with high Gleason (7–10) prostate cancers compared to the current diagnostic paradigm of using PSA. This approach demonstrates clinical actionability of FLNA alone without the requirement of prostate volume measurement as a test with utility in AA and CA men and represents a significant opportunity to decrease the number of unnecessary biopsies in aggressive prostate cancer diagnoses. [ABSTRACT FROM AUTHOR]

Fractals are a common characteristic of many artificial and natural networks having topological patterns of a self-similar nature. For example, the Mandelbrot set has been investigated and extended in several ways since it was first introduced, whereas some authors characterized it using various complex functions or polynomials, others generalized it using iterations from fixed-point theory. In this paper, we generate Mandelbrot sets using the hybrid Picard S-iterations. Therefore, an escape criterion involving complex functions is proved and used to provide numerical and graphical examples. We produce a wide range of intriguing fractal patterns with the suggested method, and we compare our findings with the classical S-iteration. It became evident that the newly proposed iteration method produces novel images that are more spontaneous and fascinating than those produced by the S-iteration. Therefore, the generated sets behave differently based on the parameters involved in different iteration schemes. [ABSTRACT FROM AUTHOR]

In the present work we have perform a comparative study of structural and elastic properties of some inorganic and organic molecular crystals viz. Realgar As4S4, As4S3, C14H10 (anthracene), C10H8 (naphthalene). For theoretical prediction, four different EOSs have been used viz. modified Lenard-Jones EOS (M-L Jones EOS), Brennan-Stacey EOS, Hamma—Suito EOS and Thomsen EOS. Further, we have checked the applicability of these EOSs for calculation of Grüneisen parameter at different compressions. Experimental data and theoretical facts give the validity of our work. [ABSTRACT FROM AUTHOR]

Aims and Objectives: Our goal is to describe the association between total quantitative blood loss (QBL) and risk of obstetric haemorrhage‐related morbidity (OBH‐M) to assess the utility of the current definition of obstetric haemorrhage (OBH). Methods: This was a retrospective cohort study completed of all patients who had a live delivery at the only urban safety‐net hospital over a 2‐year period from 2018 to 2019. We categorized deliveries into 10 equally sized deciles based on QBL and compared the proportion with OBH‐M in each. Among the two deciles with the highest proportions of OBH‐M, we stratified deliveries into seven groups of ascending intervals of 250cc QBL. Finally, we compared the positive predictive value (PPV) of the standard definition of OBH (QBL ≥ 1000cc) to a definition extrapolated from our stratified analysis. The primary outcome was proportion of deliveries within each QBL decile affected by OBH‐M. The secondary outcome was PPV. Results: We found a significant increase in OBH‐M from decile 9 (895–1201cc QBL) to decile 10 (1205–8325cc QBL) (p < 0.001). In our stratified analysis, we found QBL of 1500cc to be an inflection point for an increased proportion of OBH‐M. Our secondary analysis showed an increased PPV for OBH‐M using QBL of 1500cc (20.5%) compared with that of QBL 1000cc (9.8%). Conclusions: Our findings suggest that a higher QBL threshold than the currently accepted definition of OBH is more predictive of OBH‐M. [ABSTRACT FROM AUTHOR]

Background: Childbirth is a transformative process. Modern healthcare offers pharmacological and non-pharmacological interventions for safe and improved childbirth experience. Studies have found that maternal mobility during the first stage of labour has a significant effect on maternal and child outcomes. A pilot study was done to find the effect of mobility during the first stage of labour on maternal satisfaction and foetal outcome. Method: An experimental study was done with 60 primigravida women with uncomplicated antenatal history reporting to the labour room of a tertiary care government hospital in Delhi chosen as study participants. Validated and reliable tools were used to measure labour, maternal and neonatal outcomes within 24 h post-delivery. Results: The results showed that there was an impact on mobility intervention during the first stage of labour on parturition (p =.03) and significant maternal satisfaction (p =.001). However, the neonatal outcome of both groups was not significant. Conclusion: Mobility was an effective non-pharmacological intervention for enhancing parturition and maternal satisfaction. Mobility during the first stage of labour can be recommended for practice guidelines for all midwives in the labour room as a protocol. [ABSTRACT FROM AUTHOR]

Objective The aim of the study was to evaluate the synergistic role and advantages of integrating noncontrast computed tomography (NCCT) and magnetic resonance cholangiopancreatography (MRCP) in disorders of the pancreatobiliary (PB) system. Methods In this cross-sectional and retrospective record-based study, radiological (NCCT and MRCP) data were collected retrospectively for a period of 3 years (June 2018–August 2020) from 52 patients. The results were compared to the final diagnosis on endoscopic retrograde cholangiopancreatography (ERCP) findings (gold standard). The data collected were analyzed by measuring the sensitivity, specificity, positive predictive value, negative predictive value, diagnostic accuracy, and p -value for NCCT, MRCP, and integrated NCCT plus MRCP at different cutoff points. Subsequently, a receiver operating characteristic (ROC) curve was plotted to analyze different thresholds for NCCT, MRCP, and integrated NCCT plus MRCP. Results The most common pathologies identified were biliary dilations (18.4%), common bile duct (CBD) calculi (13.6%), and biliary strictures (12.0%). Overall, MRCP provided a higher percentage of correct diagnoses (81.6%) compared to CT (56.0%). Integrating NCCT with MRCP showed a significant increase in sensitivities and specificities when compared to NCCT or MRCP alone. Integrated NCCT plus MRCP showed excellent performance with an area under the curve (AUC) of ROC analysis of 0.937. Conclusion Our study showed that integrating NCCT and MRCP can prove to be an excellent tool in establishing a detailed diagnosis of PB disorders, better than either NCCT or MRCP alone. Due to the concurrent nature of PB disorders, it may be worth considering integrating NCCT and MRCP, given that there is an absence of contraindications to either modality. [ABSTRACT FROM AUTHOR]

Background: All women with hyperglycemia in pregnancy (HIP) require optimal care. With western Uttarakhand alone recording a HIP prevalence of 9.7%, the successful implementation of HIP guidelines pan-India at primary healthcare level becomes paramount. Aim and objective: The present cross-sectional study aimed to assess the baseline awareness of medical undergraduates regarding HIP management protocols assuming higher their knowledge better the successful implementation of these guidelines within the community. Methodology: A descriptive study was carried out among 309 medical undergraduates at a private teaching institute in Uttarakhand. Data was collected using a selfadministered, pre-tested questionnaire. Based on individual knowledge scores, participants were subdivided into: good (score≥24), moderate (score 12-24), and poor (score<12) knowledge categories. Data were analyzed using Statistical Package for Social Sciences. Results: Most subjects (92.2%) reported reading Indian textbooks on obstetrics; despite this, only 3.6% of subjects had good awareness of the protocols. Sub-domain analysis showed while 90.0% of respondents had a fair understanding of the disease basics, more than two-thirds lagged in recollecting its standard diagnostic and management protocols including the role of health workers. Conclusion: Most medical undergraduates have overall poor-to-moderate awareness of HIP management especially the diagnostic and management protocols including the role of health workers. [ABSTRACT FROM AUTHOR]

Purpose: A locking plate (LP) or non-locking plate (NLP) can be used for distal fibula fracture fixation. However, the advantages of LP over NLP in patients with distal fibula fractures are not clear. In terms of indications, the role of the two plates probably differs; however, to draw comparative conclusions, we conceptualized this systematic review and meta-analysis of studies that directly compared the two plates, wherein both groups' indications and baseline parameters were similar. Methods: An electronic literature search was performed using PubMed/Medline, Embase, Scopus, and Cochrane Library databases for studies comparing the LP versus NLP fixation for the lateral malleolus fracture. A total of 18 studies were included in qualitative and quantitative analysis. A subgroup analysis was performed for patients aged < 55 years and patients aged > 55 years. The statistical analysis was performed by Review Manager Software version 5.4.1. Results: A meta-analysis of 4243 fractures was performed across 18 studies. The rate of fracture union and overall complication rates did not differ between the two fixation groups with an OR of 0.71 (95% CI 0.26, 1.96, p = 0.51 and 1.11 (95% CI 0.84, 1.47, p = 0.47, respectively. There is no difference in the reoperation rate due to minor or major complications between the two groups. There was no difference in functional outcome (MD −0.85, with 95% CI −5.63, 3.93, p = 0.73), but NLP has a shorter surgical duration (MD 3.0, with 95% CI 0.26, 5.75, p = 0.03). A leave-one-out sensitivity analysis performed for overall complications affected the final outcome of the meta-analysis. Conclusion: This meta-analysis demonstrates no clear benefit in selecting LP over NLP for the fixation of lateral malleolus fractures. [ABSTRACT FROM AUTHOR]

Background: Asthma is defined as a chronic inflammatory disorder of airways characterized by reversible air- flow obstruction causing cough, wheeze, chest tightness and shortness of breath Crompton et al7Asthmatic attacks are set up by exposure to specific allergens such as house dust mite, pollen and animal dander. Some other factors are exercise particularly running, dyes, air pollution, infection, cigarette smoke, dry inhaled air, certain foods such as fish, eggs, yeast, and wheat which presumably reach the bronchi via blood stream. There is notice- able increase in healthcare burden from asthma in several areas of world .The most frequently mentioned aims of breathing exercises are to 'normalize' breathing pattern by adopting a slower respiratory rate with longer expiration and reduction of hyperventilation and hyperinflation. Training also frequently involves encouraging nasal breathing and a diaphragmatic breathing pattern.AQLQ AND SF36 questionnaire was used as outcome measure. Methods: The sample size of this study was 30 subjects with 15 subjects in each group. The group A was given breathing exercises interventions and group B was given aerobic exercises intervention. A written consent was taken from each before their participation into the study. Asthma Quality of Life Questionnaire (AQLQ) and SF-36 quality of life Questionnaire of both the groups were taken in 0 week and both groups were assigned treatment interventions and after 3 weeks the AQLQ and SF-36 quality of life questionnaire has been repeated. The independent variables in the study were Aerobic Exercises and Breathing Exercises. Conclusion: The breathing exercise intervention was effective in improving the quality of life in asthmatic patients. The aerobic exercise intervention was also effective in improving the quality of life in asthmatic patients. However, the quantum of reduction in lung obstruction and therefore, the overall improvement in quality of life found to be more significant with the aerobic exercise intervention than breathing exercise intervention. Thus, a combination of the breathing exercises and aerobic exercise should be incorporated into the pulmonary reha- bilitation program of the asthmatic patients. [ABSTRACT FROM AUTHOR]

To achieve breakthrough innovation, firms often need to acquire complementary knowledge from cross-industry actors in the innovation ecosystem, where unique and supermodular complementarities make knowledge exchange essential for value co-creation. This study examines the impact of the acquisition of knowledge transfer on breakthrough innovation by considering the complementors of unique and supermodular complementarity. We draw on data from 51 firms in the Chinese information and communication technology sector and apply the fuzzy set qualitative comparative analysis (fsQCA), in which we adopt factors on the complementor, relationship, and knowledge characteristics to determine the configurations that lead to firms' breakthrough innovation in the innovation ecosystem. The results show that several combinations of conditions drive firms' breakthrough innovation. Unique complementarities require conditions of explicit knowledge and cultural similarity within the realm of knowledge and complementors' characteristics. Conversely, supermodular complementarity underscores the importance of tacit knowledge, along with trust and tie strength within the characteristics of knowledge and relationships. Our study has practical and theoretical implications for complementors seeking breakthrough innovation in non-generic complementarities. • Unique and supermodular complementarities in the innovation ecosystem are heterogeneous. • We examine the acquisition of knowledge transfer's impact on breakthrough innovation to unpack these differences. • The results show that several combinations of knowledge transfer conditions drive focal firms' breakthrough innovation. • Unique complementarities emphasize knowledge specificity and require explicit knowledge and cultural similarity. • Supermodular complementarity underscores an extensive connection, considering trust and tie strength as the core. [ABSTRACT FROM AUTHOR]