Adrenaline in pulp capping treatment of reversible pulpitis

BACKGROUND The role of epinephrine in the treatment of pulp capping in patients with reversible pulpitis is not clear.AIM To explore the role of epinephrine in the treatment of pulp capping in patients with reversible pulpitis.METHODS A total of 100 patients with reversible pulpitis who were treated in Anhui Jieshou People's Hospital from January 2020 to December 2021 were included in the study.They were categorized into an observation group(n=50;treatment with adrenaline)and a control group(n=50;treatment with zinc oxide eugenol paste).The 24-h postoperative pain,regression time of gingival congestion and redness,clinical efficacy,and incidence of adverse reactions were compared between the groups.Patients were further categorized into the ineffective and effective treatment groups based on clinical efficacy.Logistic multiple regression analysis explored factors affecting the efficacy of pulp capping treatment.RESULTS A significant difference in 24-h postoperative pain was observed between the groups(P<0.05),with a higher proportion of grade I pain noted in the observation group than in the control group(P<0.01).The regression time of gingival congestion and swelling was lower in the observation group(2.61±1.44 d and 2.73±1.36 d,respectively)than in the control group(3.85±1.47 d and 4.28±1.61 d,respectively)(P<0.05).The 2-wk postoperative total effective rate was lower in the control group(80.00%)than in the observation group(94.00%)(P<0.05).The incidence of adverse reactions was not significantly different between the control(14.00%)and observation(12.00%)groups(P>0.05).The proportion of adrenaline usage was lower(P<0.05)and that of anaerobic digestion by Streptococcus and Fusobacterium nucleatum was higher in the ineffective treatment group than in the effective treatment group(P<0.05).Logistic multiple regression analysis revealed adrenaline as a protective factor(P<0.05)and anaerobic digestion by Streptococcus and F.nucleatum as risk factors for pulp capping in reversible pulpitis(P<0.05).CONCLUSION Adrenaline demonstrated therapeutic efficacy in pulp capping treatment for reversible pulpitis,reducing pain and improving clinical symptoms safely.It is a protective factor for pulp capping,whereas Streptococcus and F.nucleatum are risk factors.Targeted measures can be implemented to improve clinical efficacy.

Capping effect of reducing agents and surfactants in synthesizing silver nanoplates

The effect of reducing agents and surfactants on controlling the silver nanoplates was studied. Two reducing agents, trisodium citrate dehydrate (TSC) and potassium tartrate, were used to reduce the AgNO3 solution. In this redox system, polyvinylpyrrolidone (PVP), sodium dodecyl sulfate (SDS) and arabic gum were served as surfactants. The results showed that reducing agents and surfactants both act as the capping agent adhering to the certain facets of silver seeds to block this surface to grow. The relative intensity of reducing agents also takes an active part in influencing the growth rate and direction of silver seeds. It was also found that halides can accelerate the speed of Ostwald ripening by adding Cl?, Br? and I?into the aqueous and have some effects on the morphology of the nanoplates.

The inflammatory response of the pulp after direct capping with platelet-rich plasma and enamel matrix derivative:A controlled animal study

Aims: To evaluate the inflammatory response of the exposed pulp of incisor teeth in rats after direct pulp capping, using platelet rich plasma (PRP), enamel matrix derivate (EMD), mineral trioxide aggregate (MTA) and calcium hydroxide (Ca(OH)2). Methods: The study was conducted on 36 Wistar albino rats with a total of 144 incisor teeth. The pulps of 96 teeth of the rats were perforated and capped with different agents. Serving as the positive control group, the pulps of 24 teeth were only perforated and capped without capping agents, whereas the pulps of 24 teeth were used as the negative control group without being perforated (without any process). The research was ended with the extracting of the teeth on the 7th day-28th day. The teeth were taken to the routine and histological follows;cross sections were prepared and painted with hematoxylen & eosin. All of the sections were evaluated in terms of inflammatory reaction by histologic analysis taken by light microscope. Statistical analysis was used. The normal distribution of all data was tested with the Mann Whitney U and the differences between the groups were analyze dusing Kruskal Wallis test at 0.05 level. Results: There are no statistically significant differences in terms of inflammation type and necrosis among the treatment groups on 7 days’ post capping. However, improved inflammatory cell accumulation, hyperemia and lowest necrosis were observed from the samples treated with PRP (p < 0.05). Conversely, the EMD group indicated that the criteria of inflammation scores and hyper- emia were higher in the 28th day (p < 0.05). Conclusions: Most of cells accumulating in the PRP group and most necrosis were seen in the EMD group. These new PRP materials might serve as pulp capping biomaterials to induce initial healing response in the future.

Effect of Optical Brightening Agent(OBA)on Bleaching Process on Paper of Eucalyptus Kraft Pulp

In integrated factories of pulp and paper, the bleaching control is made by kappa number and/or brightness. However, the product paper is evaluated and valued for its whiteness. The level of final brightness of pulp certainly affects the demand for optical brighteners in paper manufacturing, nevertheless, there is not a direct correlation between consumption of optical brightener and final brightness, being the method of bleaching pulp, especially from the final stage of bleaching, also important in relation to this demand. Therefore, this study aimed to evaluate the potential of using the parameter whiteness as a tool to control bleaching pulp, instead of the traditional brightness and evaluate the impacts of different methods of bleaching and the pulp final brightness level in action of optical brighteners, to improve their performance. It was observed that the whiteness and brightness of the pulp are highly correlated and that the control of the bleaching plant can be done by any one of these two parameters. It was also concluded that, considering current prices of bleaching reagents and of optical brighteners, it is better to bleach the pulp up to lower brightness values (e.g. 88% ISO) and use larger amounts of optical brighteners to brighten the mass until the whiteness of 130 CIE. This conclusion is valid for whiteness measured before the size press. Further studies are needed to validate this conclusion considering the finished product.

Pulpdent Multi-Cal用于年轻恒前牙活髓切断术的临床研究

目的:研究Pulpdent Multi-Cal(PMC)盖髓剂用于活髓切断术的临床可操作性和疗效,为临床应用提供参考依据。方法:对因冠折露髓到北京大学口腔医院急诊科就诊患者的上颌年轻恒前牙25颗(20例患者)进行活髓切断术,用PMC盖髓剂作为活髓保存剂,观察临床可操作性和操作时间,术后对患牙进行定期随访观察,复诊时记录患牙的临床检查和X线片检查情况,并与采用北京大学口腔医院自制制剂进行活髓切断术的患牙进行比较。结果:随访6～15个月(中位时间12个月),25颗患牙(20例患者)均于1～3个月间在X线片上观察到钙化桥的形成并持续增厚,牙根继续发育,无根内外吸收和根管钙化出现。应用PMC盖髓剂活髓切断术中操作时间显著缩短(P<0.01),术后牙根长度的发育与正常的中切牙差异无统计学意义(P>0.05)。结论:使用PMC盖髓剂进行活髓切断术取得了较满意的疗效,可以作为一种成品制剂应用于临床活髓切断术的常规治疗,有助于缩短临床操作时间、控制感染,也可为研究年轻恒牙活髓保存技术和新型盖髓剂提供统一的参照标准。

促红细胞生成素干预牙髓损伤后修复性牙本质形成及骨形态发生蛋白2的表达

背景:促红细胞生成素具有抗炎、抗凋亡、促进骨缺损修复等作用,目前关于促红细胞生成素对牙髓损伤后修复性牙本质形成及其相关分子机制的研究较少。目的:探究促红细胞生成素对牙髓损伤后修复性牙本质形成的影响。方法:(1)动物实验:采用随机数字表法将32只大鼠随机分为对照组(n=16)与实验组(n=16),实验组牙髓损伤处使用含促红细胞生成素的胶原蛋白海绵直接盖髓,对照组露牙髓损伤处使用含PBS的胶原蛋白海绵直接盖髓,用玻璃离子粘固剂封闭窝洞;治疗2,4周后取上颌骨,采用免疫组化染色检测巢蛋白在牙本质中的表达,苏木精-伊红染色观察修复性牙本质生成。取4只SD大鼠上颌骨,免疫组化染色检测磨牙与切牙中促红细胞生成素表达。(2)细胞实验:从人牙髓组织、牙周韧带组织及牙龈组织中分别分离获取人牙髓细胞、人牙周韧带细胞和人牙龈成纤维细胞,采用RT-PCR检测促红细胞生成素mRNA表达。在成牙本质细胞诱导或未诱导分化条件下,采用RT-PCR检测人牙髓细胞中促红细胞生成素、牙本质涎磷蛋白、牙本质基质蛋白1、巢蛋白m RNA表达。在成牙本质细胞诱导或未诱导分化条件下,下调促红细胞生成素表达或外源性给予促红细胞生成素干预后,采用RT-PCR检测人牙髓细胞牙本质涎磷蛋白、牙本质基质蛋白1 mRNA相对表达,茜素红S染色检测矿化结节形成,RT-PCR与Western blotting检测骨形态发生蛋白2 mRNA与蛋白表达。结果与结论:(1)动物实验:与对照组相比,实验组治疗2,4周后的修复性牙本质生成量更大,牙本质中巢蛋白表达更高。促红细胞生成素在大鼠上颌第一磨牙牙髓、成牙本质细胞层和牙周膜中呈弱阳性表达,在成牙本质细胞中呈强阳性表达。(2)细胞实验:与其他两种细胞相比,人牙髓细胞中的促红细胞生成素m RNA表达更高。与未诱导分化相比,成牙本质细胞诱导分化下人牙髓细胞中牙本质涎磷蛋白、牙本质基质蛋白1、巢蛋白、促红细胞生成素与骨形态发生蛋白2 mRNA表达升高,矿化结节生成增加。在成牙本质细胞诱导分化下,下调促红细胞生成素表达后人牙髓细胞中牙本质涎磷蛋白、牙本质基质蛋白1、巢蛋白、骨形态发生蛋白2 mRNA表达与矿化结节生成均降低,骨形态发生蛋白2蛋白表达降低;外源性给予促红细胞生成素干预后,人牙髓细胞中上述指标表达均升高。(3)结果表明:促红细胞生成素对牙本质形成具有一定的促进作用。

Depulpin对乳磨牙牙髓的失活效果

观察非砷类牙髓失活剂Depulpin和金属砷失活剂在乳磨牙中的临床疗效差异,结果显示牙髓失活剂Depulpin用于乳磨牙的临床疗效优于含砷类慢性牙髓失活剂,是一种更有效、更安全,适用于乳牙的牙髓失活剂。

无砷牙髓失活剂Antipulp临床疗效观察

目的评价Antipulp牙髓失活剂的临床效果及不良反应。方法 240例龋原性牙髓炎患者随机分为实验组和对照组,每组120例。实验组开髓后封Antipulp 14 d,对照组开髓后封亚砷酸糊剂48 h,观察并比较两组患牙失活效果以及不良反应。结果实验组和对照组失活有效率分别为93.33%和84.17%,差异有统计学意义(χ2=5.05,P=0.024);实验组和对照组疼痛发生率分别为18.33%和44.17%,牙龈及牙周组织损伤的发生率分别为6.67%和25.83%,差异均有高度统计学意义(均P<0.01)。结论 Antipulp牙髓失活剂可明显减少牙髓炎患者在失活及拔髓过程中的疼痛以及对牙周织的损伤,且效果优于亚砷酸糊剂。

Electrospinning of a sandwich-structured membrane with sustained release capability and long-term anti-inflammatory effects for dental pulp regeneration

Current electro spun membranes used for pulp capping still lack the sustained-release capability and long-term anti-inflammatory effects that are favorable for dental pulp regeneration.In this work,a single-layered poly(lac tic acid)(PLA)electro spun membrane loaded with amorphous calcium phosphate(ACP)and aspirin(PLA/ACP/Aspirin membrane,i.e.,PA A membrane)is sandwiched between two poly(lactic-co-glycolic acid)(PLGA)electro spun membranes as a novel sandwich-structured PLGA and PA A composite electro spun membrane(PLGA-PAA membrane)to resolve the need for sustained-release design and anti-inflammatory effects.Contact angle measurements indicate that the PLGA-PAA membrane is more hydrophilic than the PAA membrane.An in vitro release study reveals that PLGA membranes coated on PAA membrane could slightly slow down ion release,while signiificantly prolonging aspirin release.We also co-cultured membranes with dental pulp stem cells(DPSCs)and human monocytic THP-1 cells to evaluate their osteogenic ability and anti-inflammatory effects,respectively.Compared with the PAA membrane,the PLGA-PAA membrane promotes cell adhesion,proliferation,and osteogenic differentiation.A prolonged anti-inflammatory effect of up to 18 days is also observed in the PLGA-PAA group.The results suggest a promising strategy for fabricating an electro spun membrane system with controlled release capabilities and long-term anti-inflammatory effects for use as pulp-capping material for regeneration of the dentin-pulp complex.

MTA与iRoot BP Plus行直接盖髓术治疗龋源性露髓恒磨牙临床疗效分析

目的:观察成熟恒磨牙去龋未净时露髓使用无机三氧化物聚合体(Mineral trioxide aggregate,MTA)和生物陶瓷类材料(iRoot BP Plus)行直接盖髓术的临床疗效,探讨此类术式的可行性及其影响因素,比较两种盖髓剂疗效的差异。方法:选取2018年4月-2019年10月就诊于笔者科室符合纳入标准的53例患者,共53颗患牙,随机分为M组和B组,分别使用MTA与iRoot BP Plus行直接盖髓术,术后定期复查,比较两组的临床疗效。结果:共计45例患者(45颗患牙)完成2年随访,总体成功率84.4%;M组和B组分别为85.7%、83.3%,两组比较差异无统计学意义(P>0.05)。性别、年龄、露髓孔大小等因素对疗效均无显著影响(P>0.05)。结论:成熟恒磨牙术中露髓时使用MTA或iRoot BP Plus行直接盖髓术均可获得良好疗效;相较于性别、年龄、露髓孔大小等因素,如何简单准确评判牙髓状态及避免龈下微渗漏更加值得关注。

利用制浆黑液研制混凝土减水剂及其在建筑工程上的应用研究

在制浆造纸过程中产生的大量制浆黑液对环境有很大危害,处理制浆黑液时要把环境和水源的保护考虑在内。目前制浆黑液混凝土减水剂的研发及应用于建筑工程,是安全绿色处理制浆黑液的有效途径,不仅使废料重新利用,还节约了减水剂制造成本,达到双赢效果。制浆黑液研制的减水剂对混凝土制品抗压性能和抗渗性能的提升及其在建筑工程上的应用是建筑行业及制浆造纸行业的巨大突破。废料的二次利用不仅节约了制造成本,还降低了混凝土的生产成本,更好地保护了环境,从而实现了可持续发展,为以后的制浆黑液废液处理提供了新的思考方向和借鉴价值。

活髓切断术与间接盖髓术对乳磨牙深龋患儿治疗效果及预后的影响比较

目的:对比分析活髓切断术与间接盖髓术对乳磨牙深龋患儿治疗效果及预后的影响。方法:对2019年1月-2023年2月笔者医院收治的152例乳磨牙深龋患儿的临床资料进行回顾性分析,按治疗方法的不同分为A组(n=78,96颗患牙)和B组(n=74,96颗患牙),A组予以活髓切断术治疗,B组予以间接盖髓术治疗,治疗后均随访12个月。比较两组治疗效果、牙本质桥形成率、牙齿咀嚼功能、并发症发生情况和学龄前儿童口腔健康影响量表(ECOHIS)的差异。结果:治疗后12个月,A组患牙的修复成功率高于B组(P<0.05);治疗后6、12个月,A组患牙的牙本质桥形成率均高于B组(P<0.05);治疗后12个月,两组牙齿咀嚼功能各维度评分均高于同组治疗前,且A组均高于B组(P<0.05);A组的并发症发生率低于B组(P<0.05);两组ECOHIS量表口腔症状、口腔功能、心理状态、社会交往评分均低于同组治疗前,且A组低于B组(P<0.05)。结论:活髓切断术相较间接盖髓术对乳磨牙深龋患儿的疗效更加显著,能有效提高修复成功率,促进牙本质桥形成,改善牙齿咀嚼功能,提高生存质量,减少并发症的发生。

乳牙直接盖髓术的研究进展

乳牙龋病及牙髓病的及时治疗对于维护儿童口腔健康有重要意义。直接盖髓术是一种将生物活性材料直接覆盖于牙髓暴露处,促进牙本质桥形成的活髓保存治疗方法。直接盖髓术可用于治疗牙髓活力正常、露髓孔≤1 mm的机械性露髓乳牙,具有微创、舒适、操作简单和椅旁时间短等优点,适合在儿童口腔临床中开展。早期研究认为深龋露髓乳牙使用直接盖髓术疗效不佳,近年来随着材料和技术的进步,直接盖髓术在乳牙深龋治疗的临床研究中取得了良好的治疗效果。然而,因相关研究质量较低,龋源性露髓乳牙的直接盖髓治疗尚未被普遍推荐,其广泛应用仍需更多高质量循证医学证据的支持。牙髓状态、隔离去龋操作、盖髓剂、洞型及牙位、冠方封闭及牙科畏惧等均是乳牙直接盖髓术成功率的影响因素。临床操作中应正确判断牙髓状态,最大程度减少细菌污染。三氧化矿物凝聚体(mineral trioxide aggregate,MTA)是目前证据较为充分、治疗效果良好的直接盖髓剂,盖髓后应进行严密冠方封闭。iRoot BP Plus等新型生物活性材料应用于乳牙直接盖髓术的效果,以及止血方法等其他因素对患牙预后的影响仍待进一步深入探究。

生物陶瓷材料iRoot BP Plus与三氧化矿物聚合物在活髓切断术中疗效对比的Meta分析

目的比较生物陶瓷材料iRoot BP Plus与三氧化矿物聚合物(MTA)用作牙齿活髓切断术盖髓剂的疗效差异。方法检索PubMed、Web of Science、Cochrane Library、CNKI、万方数据库和维普数据库中收录的iRoot BP Plus与MTA用于牙齿活髓切断术治疗的随机对照试验(RCT),检索时间为数据库建库至2023年3月。由2名成员严格按照纳入和排除标准独立进行筛选,结局指标包括临床成功率、盖髓操作时间、牙本质桥形成率及牙变色率。利用Cochrane偏倚风险评价工具进行文献质量评价,使用Stata 15.0软件对被纳入的文献进行Meta分析。结果最终纳入18篇RCT,Meta分析结果显示:1)术后3、6、12个月iRoot BP Plus组与MTA组之间临床成功率的差异无统计学意义(P>0.05);2)iRoot BP Plus组的盖髓操作时间明显小于MTA组(P<0.05);3)术后3个月,iRoot BP Plus组的牙本质桥形成率高于MTA组(P<0.05);4)末次随访iRoot BP Plus组牙变色率显著低于MTA组(P<0.05)。结论iRoot BP Plus用于牙齿活髓切断术的临床成功率与MTA相近,但较MTA盖髓操作时间更短,发生牙变色的概率更低。

iRoot BP plus盖髓治疗深龋恒牙的3年临床疗效分析

目的:观察iRoot BP plus盖髓治疗恒牙深龋3年后的临床疗效,探讨此类治疗方法的可行性及影响因素。方法:选取2019年1月至2020年9月于我科就诊,诊断为深龋或可复性牙髓炎成熟恒牙112颗,在牙科手术显微镜下选择性去龋后完成盖髓治疗,随访3年,通过影像学检查及临床指标评估患牙治疗效果。采用Kaplan-Meier生存分析统计活髓生存率,采用χ^(2)检验分析各个变量对疗效的影响。结果:Kaplan-Meier生存曲线显示112例成熟恒牙盖髓术后3年生存率为91.1%,82例患牙行间接盖髓术,30例患牙去龋时露髓行直接盖髓术,3年生存率分别为92.7%与86.7%。盖髓疗效与性别、年龄、术前诊断、牙型(前牙、前磨牙、磨牙)、洞形(Ⅰ类洞、Ⅱ类洞、Ⅲ类洞)、牙位及盖髓方式无相关性(P>0.05)。结论:iRoot BP plus作为盖髓剂对诊断为深龋或可复性牙髓炎的成熟恒牙行盖髓治疗疗效良好,研究变量对预后均无显著影响。

牙齿漂白剂研究的新进展

牙齿漂白是应用漂白剂改善由疾病、年龄增长、食物和饮料染色以及抽烟等原因导致的牙齿结构着色的方法。传统漂白剂主要通过过氧化氢产生活性氧,发生氧化还原反应将有机色素分子转化为浅色化合物发挥漂白功效。但过氧化氢的漂白效果尚需要提升,且存在导致牙齿敏感和釉质脱矿的风险。针对这些问题,近年来在牙齿漂白剂研究方面取得了一些新的进展,本文将围绕非过氧化物类漂白功效成分、过氧化氢催化新方式、减少漂白不良反应新策略等方面进行综述。

麦草浆中木质素含量对防油剂作用效果的影响

在含氟防油剂经济用量范围内,针对麦草高得率浆抄造纸张防油效果不理想的问题,本研究对麦草高得率浆进行氧脱木质素处理,得到一系列不同卡伯值的麦草浆,探讨了麦草浆中木质素含量对防油剂作用效果的影响。结果表明,麦草浆中木质素含量对含氟防油剂的作用效果有明显影响,在防油剂质量分数1%(相对于绝干浆)的条件下,当麦草浆卡伯值降至<50.0时,麦草浆抄造纸张具有初步防油效果;当麦草浆卡伯值为30.0~50.0时,随着卡伯值降低,麦草浆抄造纸张的防油等级逐渐上升;当麦草浆卡伯值降至<30.0时,麦草浆抄造纸张防油等级达到最高等级(7级)。利用Owens-Wendt-Rabel-Kaelble (OWRK)法分析纸张的表面自由能,随着麦草浆中木质素的脱除,纸张的表面自由能不断降低,而极性比率不断升高,表明木质素的脱除有利于提高纸张防油效果。麦草浆中木质素含量也会影响防油剂用量,在一定防油等级要求下,麦草浆的卡伯值越低,所需防油剂用量越少。

乳牙龋源性露髓的活髓保存治疗研究进展

乳牙深龋去腐过程中露髓是一种在临床上非常常见的情形。随着近年来牙髓生物学的研究深入及新型盖髓材料的开发,儿童口腔医学领域对于乳牙龋源性露髓的治疗理念也发生了变化。如今,更多的医生倾向于采用活髓保存治疗方案,即尽量保留活髓或部分活髓,以实现控制感染和治愈患牙的目的。文章将从乳牙活髓保存的治疗方法、盖髓材料的种类及性能以及活髓保存治疗成功率的影响因素3个方面的研究进展做一综述。

红景天苷对小鼠成牙本质细胞系MDPC⁃23增殖、迁移和矿化能力影响的研究

目的:探究红景天苷(SAL)对小鼠成牙本质细胞系MDPC⁃23增殖、迁移和矿化能力的影响。方法:体外培养小鼠成牙本质细胞系MDPC⁃23,用不同浓度SAL(0、10、20、50、100μmol/L)培养MDPC⁃23,通过CCK⁃8法、活/死细胞染色、划痕实验、Transwell实验检验SAL对MDPC⁃23毒性、增殖和迁移能力影响。对0、10、20μmol/L SAL组MDPC⁃23进行矿化诱导培养,通过碱性磷酸酶(ALP)染色及活性检测、茜素红染色、钙结节定量测定、实时荧光定量PCR和Western blot实验评估各组细胞矿化能力。结果:SAL可促进细胞的增殖且无明显细胞毒性,以20μmol/L效果最为显著(P<0.05);SAL对细胞迁移有显著促进作用(P<0.05)。SAL诱导MDPC⁃23产生更多的矿化结节(P<0.05)。20μmol/L SAL显著促进ALP表达(P<0.05)。SAL处理MDPC⁃23后的ALP、骨钙素(OCN)和Runt相关转录因子2(Runx2)、牙本质涎磷蛋白(DSPP)以及牙本质基质蛋白⁃1(DMP⁃1)的基因表达显著增加(P<0.05),OCN和Runx2蛋白表达水平显著增加(P<0.05)。结论:SAL可促进MDPC⁃23的增殖、迁移和矿化。

封顶剂不同浓度飞喷对棉花的封顶效果研究

研究不同浓度复配封顶剂飞喷对棉花的封顶效果,结果表明,高浓度处理的株高、株宽、果台数、主茎节间数、平均LAI较中浓度减少了2.76%、5.89%、6.37%、7.77%、0.61%,较低浓度处理减少了11.85%、9.78%、16.94%、18.68%、6.25%,其平均SPAD值和单叶P_(n)较中浓度增加了6.49%、4.46%,较低浓度处理增加了12.47%、17.51%;低药剂浓度处理的茎、叶干物质积累显著高于中、高浓度处理,其生殖器官干物质积累及最终产量明显低于中、高浓度处理,且中浓度与高浓度处理差异不显著。无人机喷施甲哌鎓水剂1200~1500 mL/hm^(2)+烯效唑300~375 g/hm^(2)+油酸甲酯40~47.5 mL/hm^(2),可有效控制株型,增加产量。